# Mailster Knowledge Base --- ## Posts - [Mailster Database Structure](https://kb.mailster.co/mailster-database-structure/): Mailster stores subscribers, lists, forms, queues, logs, and interaction events in custom tables using the InnoDB engine and utf8mb4_unicode_520_ci collation.... - [Do I have to store the users IP address?](https://kb.mailster.co/do-i-have-to-store-the-users-ip-address/): When managing an email marketing list, responsibly collecting user data is key for compliance and deliverability. Storing IP addresses isn't... - [Time-Based Sending](https://kb.mailster.co/time-based-sending/): Mailster's Time Frame settings allow you to control when email campaigns and autoresponders are sent, enhancing engagement and respecting recipients'... - [Subscriber Detail](https://kb.mailster.co/subscriber-detail/): Each subscriber has a detailed page with their email, name, status, subscription info, GDPR consent, custom fields, and more. You’ll... - [Custom Fields](https://kb.mailster.co/custom-fields/): With custom fields in Mailster, you can enhance subscriber info beyond the basics like email and name. Add details like... - [Auto responder](https://kb.mailster.co/auto-responder/): Mailster's auto-responder feature automates your email marketing with six types, including subscriber-based, action-based, and time-based options. It lets you send... - [Notifications Template](https://kb.mailster.co/notifications-template/): Mailster can send transactional emails using a special template. Starting from version 4. 0, it uses a base template, typically... - [Preheaders](https://kb.mailster.co/preheaders/): Preheaders are short phrases that boost your email's click-through rate by appearing in the preview pane of some email clients.... - [Widgets](https://kb.mailster.co/widgets/): Mailster offers four handy widgets for your WordPress site, found under the Appearance menu. You can add a signup form,... - [Shortcodes](https://kb.mailster.co/shortcodes/): Mailster offers five handy shortcodes for easy newsletter integration. Use to embed campaigns, for recent newsletters, and for sign-up forms.... - [Mail App Unsubscribe](https://kb.mailster.co/mail-app-unsubscribe/): Mailster includes a List Unsubscribe Header in newsletter campaigns, facilitating easy opt-outs through mailto or URL links. This feature enhances... - [Do Not Track (DNT)](https://kb.mailster.co/do-not-track-dnt/): The Do Not Track (DNT) mechanism allows users to signal their preference against online tracking via a browser setting. Despite... - [Security Settings](https://kb.mailster.co/security-settings/): Mailster's Security Settings enhance campaign protection by validating emails, blocking spam, and preventing duplicate signups. Key features include MX record... - [Capablities in Mailster](https://kb.mailster.co/capablities-in-mailster/): Mailster empowers WordPress users by providing customizable role-based access to manage campaigns, subscribers, and templates. With default roles like Administrator... - [How to change ownership of a license?](https://kb.mailster.co/how-to-change-ownership-of-a-license/): Easily transfer your Mailster license via the WordPress dashboard by navigating to "Newsletter" > "Account," editing the email address, and... - [Email Automation Trigger: Subscriber added to a list](https://kb.mailster.co/email-automation-trigger-subscriber-added-to-a-list/): This trigger kicks off a workflow whenever a subscriber is added or removed from a list, no matter who did... - [Email Automation Trigger: Tag added](https://kb.mailster.co/email-automation-trigger-tag-added/): This trigger kicks off a workflow whenever a tag is added or removed from a subscriber, no matter who made... - [Email Automation Trigger: Field updated](https://kb.mailster.co/email-automation-trigger-field-updated/): This trigger kicks off a workflow when a specific subscriber field is added or updated. You can set which field... - [Email Automation Trigger: Specific date](https://kb.mailster.co/email-automation-trigger-specific-date/): This trigger launches a workflow on a set date, perfect for sending birthday or anniversary messages. You can use specific... - [Email Automation Trigger: Form Conversion](https://kb.mailster.co/email-automation-trigger-form-conversion/): This trigger kicks off a workflow when a user signs up and confirms their subscription through a chosen form. If... - [Email Automation Trigger: Anniversary](https://kb.mailster.co/email-automation-trigger-anniversary/): Celebrate your subscribers' special moments with anniversary workflows! Use specific dates for all subscribers or custom field dates for personalized... - [Email Automation Trigger: Click a link](https://kb.mailster.co/email-automation-trigger-click-a-link/): Set up a workflow that activates when specific links are clicked in your campaigns. You can track both internal and... - [Email Automation Trigger: Visits a page](https://kb.mailster.co/email-automation-trigger-visits-a-page/): You can set up workflows to trigger when subscribers visit specific pages on your website. To qualify, they must have... - [Email Automation Trigger: Custom Hook](https://kb.mailster.co/email-automation-trigger-custom-hook/): You can run a workflow with custom PHP code by using "Custom Hook" as your trigger. Define the hook's name,... - [Email Automation Trigger: Subscriber removed to a list ](https://kb.mailster.co/email-automation-trigger-subscriber-removed-to-a-list/): This trigger kicks off a workflow anytime a subscriber is removed from a list. You can also set it up... - [Email Automation Trigger: Tag removed](https://kb.mailster.co/email-automation-trigger-tag-removed/): This trigger kicks off a workflow whenever a tag is removed from a subscriber. You can also set it to... - [Upgrading Your License](https://kb.mailster.co/upgrading-your-license/): With Mailster, you can easily switch or upgrade your plan anytime. Simply access the "Account" page in the WordPress Dashboard... - [Missing or wrong Translations](https://kb.mailster.co/missing-or-wrong-translations/): Mailster supports over 20 languages, featuring 3,500 strings. To help maintain accurate translations, join our Translator Program and receive a... - [Inspect the Queue of your Workflow Step](https://kb.mailster.co/inspect-the-queue-of-your-workflow-step/): In Mailster, steps typically process in sequence, but certain actions like Delay or Email may require queuing subscribers. The current... - [Email Automation: Jumper](https://kb.mailster.co/email-automation-jumper/): Jumpers streamline your workflow by allowing you to skip steps or navigate to specific points in the customer journey. Easily... - [Email Automation: Notification](https://kb.mailster.co/email-automation-notification/): Set up email notifications in your workflow by adding a Notification step. Enter the recipient's email, define a subject, and... - [How to manage your licenses for Mailster](https://kb.mailster.co/how-to-manage-your-licenses-for-mailster/): Freemius uses license keys for product access, ensuring support and automatic updates. After purchase, you'll receive an email with your... - [Email Health Check](https://kb.mailster.co/email-health-check/): Gmail and Yahoo will enforce new sender authentication policies from February 1, 2024, targeting bulk senders—those emailing over 5,000 recipients... - [Using Custom Modules](https://kb.mailster.co/custom-modules/): Modules are customizable sections in your newsletter templates, allowing you to drag and drop various blocks to design your emails.... - [Send your Newsletters via MailJet](https://kb.mailster.co/send-your-newsletters-via-mailjet/): Mailjet is an efficient email marketing tool that integrates with Mailster, offering robust bounce handling support. To get started, create... - [Convert your Legacy Forms](https://kb.mailster.co/convert-your-legacy-forms/): Mailster 4. 0 introduces a new form builder based on the WordPress block editor, requiring users to convert existing legacy... - [Email Automation: Triggers](https://kb.mailster.co/email-automation-triggers/): Mailster's email marketing automation allows you to create workflows initiated by triggers. With up to five available triggers—like subscriber additions,... - [Email Automation: Actions](https://kb.mailster.co/email-automation-actions/): Mailster's actions enhance your email automation workflow by allowing you to update custom fields, manage subscriber lists, add or remove... - [Email Automation: Delay](https://kb.mailster.co/email-automation-delay/): Incorporating a delay step in your workflow introduces a strategic pause, allowing for better timing of subsequent actions. Options include... - [Email Automation: Email](https://kb.mailster.co/email-automation-email/): At this stage, an email is sent to subscribers, allowing for campaign customization and tracking. Ensure a reasonable delay between... - [Email Automation in WordPress](https://kb.mailster.co/email-automation-in-wordpress/): Mailster automates email marketing, enhancing communication and customer engagement through customizable workflows. Key components include triggers and actions, allowing for... - [Kitchen Sink](https://kb.mailster.co/kitchen-sink/): This article highlights the new WordPress editor, designed to make adding and organizing content easier. It features block-based editing, allowing... - [Convert your Newsletter Homepage](https://kb.mailster.co/convert-your-newsletter-homepage/): Upgrade your newsletter homepage by migrating from shortcodes to new block forms. Remove outdated shortcodes (, , ) and add... - [How can I setup the newsletter homepage?](https://kb.mailster.co/how-can-i-setup-the-newsletter-homepage/): To set up your newsletter with Mailster, create a static homepage to manage subscriptions. This page, called "Newsletter," is auto-generated... - [Update Billing Details and Access Invoices](https://kb.mailster.co/update-billing-details-and-access-invoices/): Updating your Freemius billing information is easy! Log in to your account at https://mailster. co/account, go to My Profile, and... - [Change the length of the excerpt](https://kb.mailster.co/change-the-length-of-the-excerpt/): WordPress allows customization of excerpt length through the excerpt_length filter. Mailster offers a similar feature using the mailster_excerpt_length filter, enabling... - [How can I upgrade my license?](https://kb.mailster.co/how-can-i-upgrade-my-license/): Upgrade your license directly from the plugin by navigating to Newsletter => Account and clicking "Change Plan. " Enter your... - [Logging Outgoing Mails in Mailster](https://kb.mailster.co/logging-outgoing-mails-in-mailster/): Mailster allows you to log outgoing emails in WordPress. Enable logging in the Newsletter settings, define entry limits, and access... - [Why does my Legacy license expire?](https://kb.mailster.co/why-does-my-legacy-license-expire/): If you purchased an Envato license after October 1, 2022, it will expire in five months, halting automatic updates via... - [Licensing Information](https://kb.mailster.co/licensing-information/): You can purchase Mailster from either mailster. co or CodeCanyon. Each license is domain-specific, allowing use on unlimited subdirectories. You... - [Static Map Service](https://kb.mailster.co/static-map-service/): Mailster offers three static map options: no maps, OpenStreetMaps for privacy, or Google Maps for high-quality visuals. Adjust your preference... - [Block Forms](https://kb.mailster.co/block-forms/): Manage your block forms easily through the "Block Forms" menu in the Newsletter section. Create new forms with templates, customize... - [Subscribers Overview](https://kb.mailster.co/subscribers-overview/): Mailster makes it easy to manage your subscribers right in WordPress. You can view, search, and filter subscribers by status.... - [Finished Campaigns](https://kb.mailster.co/finished-campaigns/): Mailster offers in-depth campaign statistics, including total recipients, click rates, device usage, and geographic location of opens. You can filter... - [Delete Subscribers](https://kb.mailster.co/delete-subscribers/): You can easily delete subscribers in Mailster to keep your list healthy. Use the Delete Subscribers page for bulk actions,... - [Create Custom Templates](https://kb.mailster.co/create-custom-templates/): A Mailster Template is a folder with essential files for creating email templates. It must include at least two files:... - [Templates](https://kb.mailster.co/templates/): Mailster templates shape your campaign's design, accessible under Newsletter => Templates in your WordPress Dashboard. You can upload purchased or... - [Campaign Precheck](https://kb.mailster.co/precheck/): Mailster's Precheck feature allows you to efficiently assess your campaign's deliverability. It analyzes subject lines, links, images, and provides a... - [The Campaign Editor](https://kb.mailster.co/the-campaign-editor/): The Mailster campaign editor simplifies campaign creation, allowing users to design campaigns and autoresponders easily. Key features include customizable titles,... - [Frontpage](https://kb.mailster.co/frontpage/): The Frontpage displays your newsletter in a web format, featuring navigation buttons, a share option, and customizable settings. You can... - [Campaign Overview](https://kb.mailster.co/campaign-overview/): The Campaign Overview page provides a snapshot of all your campaigns, displaying subscriber statuses and performance metrics. Campaigns can have... - [I have problems with sending campaigns.](https://kb.mailster.co/i-have-problems-with-sending-campaigns/): If you experience issues sending your campaigns, verify your cron setup, as it's crucial for successful delivery. Check for cron... - [How to read metrics on the campaign overview page.](https://kb.mailster.co/how-to-read-metrics-on-the-campaign-overview-page/): The Campaign Overview page provides insights into campaign performance, highlighting key metrics. With 8,318 total receivers, the campaign achieved a... - [How do I import my subscribers?](https://kb.mailster.co/how-do-i-import-my-subscribers/): Before launching your first email campaign with Mailster, import your existing subscribers on the “Manage Subscribers” page. You can upload... - [Migrating your license to Freemius](https://kb.mailster.co/migrating-your-license-to-freemius/): To continue using Mailster after purchasing it on Envato, migrate your license to Freemius via the WordPress Dashboard. Enter your... - [Use Advanced Custom Fields in your Newsletter Campaigns](https://kb.mailster.co/use-advanced-custom-fields-in-your-newsletter-campaigns/): Advanced Custom Fields (ACF) enhances WordPress by allowing users to add custom fields to edit screens, streamlining website development and... - [Trigger Custom Javascript on Form Submission](https://kb.mailster.co/trigger-custom-javascript-on-form-submission/): Mailster Block Forms allows you to run custom JavaScript to track form submissions via Analytics. Access the "Events" section to... - [Prevent spam filters from automatically opening and clicking through links in your campaigns](https://kb.mailster.co/prevent-spam-filters-from-automatically-opening-and-clicking-through-links-in-your-campaigns/): Email spam filters may click links in your emails, leading to false open rates and unintended unsubscribes. Mailster offers an... - [Send your emails as fast as possible](https://kb.mailster.co/send-your-emails-as-fast-as-possible/): Mailster sends emails in batches to avoid server timeouts and delivery bans. You can enable automatic batch size adjustment based... - [Warm up your email delivery method](https://kb.mailster.co/warm-up-your-email-delivery-method/): When starting with email marketing or changing providers, avoid sending too many emails at once. Use Mailster’s Warmup settings to... - [How many mails can I send at once?](https://kb.mailster.co/how-many-mails-can-i-send-at-once/): Optimize your email marketing by balancing throughput rate and batch size to avoid server timeouts. Determine your server's email capacity... - [Manually replacing a Mailster version](https://kb.mailster.co/manually-replacing-a-mailster-version/): Mailster includes security features to protect against malicious versions. To ensure you have a legitimate copy, obtain a valid license... - [Mailster Customization Services](https://kb.mailster.co/mailster-customization-services/): Need custom website work? Partner with Codeable, the leading WordPress freelancer platform. Simply fill out a form for a direct... - [Sending post-purchase coupon codes to WooCommerce customers.](https://kb.mailster.co/sending-post-purchase-coupon-codes-to-woocommerce-customers/): Easily offer discounts to customers after purchases with Mailster and WooCommerce. Set up a customer journey that includes sending a... - [Send your newsletters via Gmail](https://kb.mailster.co/send-your-newsletters-via-gmail/): Gmail is a popular email provider, but it's not ideal for marketing due to strict limits and potential spam issues.... - [The Mailster Cookie](https://kb.mailster.co/the-mailster-cookie/): Mailster sets a cookie named "mailster" when a subscriber clicks a campaign link, allowing user identification even without an account... - [Grace Period](https://kb.mailster.co/grace-period/): Mailster allows multiple autoresponders to automate campaigns, utilizing a default one-week "Grace Period" to prevent accidental sends. Users can easily... - [List Based and Global Subscriptions](https://kb.mailster.co/list-based-and-global-subscriptions/): Mailster offers two subscription models: list-based (recommended for flexibility) and global subscriptions. Subscribers can unsubscribe from individual lists or all... - [Encode Tags for Links](https://kb.mailster.co/encode-tags-in-links/): When using Mailster tags in links, remember to encode them with PHP's rawurlencode. Prepend an exclamation mark (! ) to... - [Random Dynamic Posts](https://kb.mailster.co/random-dynamic-posts/): Mailster's random posts feature complements dynamic posts by displaying a random post under the same conditions. Using tags like {post_title:~7},... - [RSS Email Campaigns](https://kb.mailster.co/rss-email-campaigns/): Mailster allows you to automate recurring autoresponders using RSS Feeds, ideal for integrating external content. For content from your own... - [Dynamic Custom Post Types](https://kb.mailster.co/dynamic-custom-post-types/): Mailster's dynamic tag engine allows you to create custom post types that generate content on demand, enabling endless possibilities for... - [WordPress displays a 404 error after updating the campaign](https://kb.mailster.co/wordpress-displays-a-404-error-after-updating-the-campaign/): If your WordPress site redirects to /wp-admin/post. php, it may be due to misconfigured mod_security settings. This often stems from... - [Use Unsplash images in Email Campaigns](https://kb.mailster.co/unsplash/): With Mailster, access over 1,000,000 free photos through Unsplash directly in the editor. Easily add images to your email campaigns... - [What information will be tracked by opting into usage tracking?](https://kb.mailster.co/usage-tracking/): With Mailster 4. 0, usage tracking is optional during installation or updates. Opting in helps us improve features and fix... - [Why do my emails end up in the Gmail Promotions Tab?](https://kb.mailster.co/why-do-my-emails-end-up-in-the-gmail-promotions-tab/): To improve the chances of your Mailster campaigns landing in Gmail's Primary Inbox, minimize images, favor plain text, limit external... - [Permalink Structure](https://kb.mailster.co/permalink-structure/): Mailster utilizes custom rewrite rules for user navigation and link processing on the newsletter homepage. Issues with links may arise... - [Working with animated GIFs in Mailster](https://kb.mailster.co/working-with-animated-gifs-in-mailster/): Animated GIFs can enhance your email marketing, but Mailster's default image resizing may lose animation. To preserve it, use Mailster's... - [Handling Bounces with AmazonSNS](https://kb.mailster.co/handling-bounces-with-amazonsns/): To manage bounces more effectively with Amazon SES in Mailster, switch to Amazon SNS for enhanced control. Set up SNS... - [How many subscribers can Mailster handle?](https://kb.mailster.co/how-many-subscribers-can-mailster-handle/): Mailster offers unlimited subscribers, lists, forms, and campaigns, but server limits may affect performance. To optimize, maintain fewer subscribers, simplify... - [Send your Newsletters via SendGrid](https://kb.mailster.co/send-your-newsletters-via-sendgrid/): Integrate SendGrid with Mailster by signing up, creating an API key with specific permissions, and authenticating your sender. Choose between... - [How to migrate Mailster to a new site](https://kb.mailster.co/how-to-migrate-mailster-to-a-new-site/): To transfer Mailster from one site to another, back up both databases, optionally export data, and copy the Mailster tables... - [User Ratings](https://kb.mailster.co/user-ratings/): Mailster's user ratings reflect subscriber engagement, updated with each interaction—opens and clicks boost ratings, while bounces and unsubscribes lower them.... - [Adding Content to your Forms](https://kb.mailster.co/adding-content-to-your-forms/): This article outlines how to customize Legacy Forms using Mailster. You can enhance forms with additional content by employing the... - [Disabling the Inline Editor](https://kb.mailster.co/disabling-the-inline-editor/): This article is outdated for the latest Mailster version. The Inline Editor enhances campaign creation efficiency. To revert to the... - [Mailster Subscriber Query](https://kb.mailster.co/subscriber-query/): Mailster simplifies subscriber segmentation with its Subscriber Query feature, allowing custom coding for tailored results. Users can query subscribers based... - [Using Multi language Newsletter with WPML](https://kb.mailster.co/using-multi-language-newsletter-with-wpml/): With Mailster and the WPML plugin, you can effortlessly create multi-language email campaigns. Set up forms and translate settings for... - [Security Nonce is invalid](https://kb.mailster.co/security-nonce-is-invalid/): Mailster forms use WordPress Nonces to prevent invalid submissions, but these can expire after 24 hours, often due to caching.... - [Mailster and GDPR](https://kb.mailster.co/gdpr/): The GDPR, effective May 25, 2018, mandates key principles for data protection, including obtaining consent, the right to access, the... - [Mail Headers in Mailster](https://kb.mailster.co/mail-headers-in-mailster/): Mailster sends emails as multi-part MIME messages with headers that identify the sender and campaign. Key headers include version numbers,... - [Adding Posts to your Campaign](https://kb.mailster.co/adding-posts-to-your-campaign/): Mailster offers seamless integration with WordPress, allowing users to easily add posts, pages, or custom post types to campaigns. You... - [WordPress Users in Mailster](https://kb.mailster.co/wordpress-users-in-mailster/): Mailster allows seamless integration of WordPress users into your subscriber list. It offers automatic linking for matching emails, user import... - [Send your Newsletters via Mailgun](https://kb.mailster.co/send-your-newsletters-via-mailgun/): Mailgun is a developer-friendly email provider that integrates seamlessly with Mailster for campaign sending. To get started, sign up, add... - [Validating Custom Fields](https://kb.mailster.co/validating-custom-fields/): Mailster allows you to create custom fields for subscriber information, such as a birthday field. By adding custom code, you... - [Send your Newsletters via SparkPost](https://kb.mailster.co/send-your-newsletters-via-sparkpost/): SparkPost is a reliable email delivery service that requires setup, including domain verification and API key creation. While it no... - [Using WooCommerce in your Newsletter Campaigns](https://kb.mailster.co/using-woocommerce-in-your-newsletter-campaigns/): Enhance your WooCommerce shop's outreach with Mailster's WooCommerce add-on. Effortlessly send auto-responder campaigns featuring your latest products. Utilize dynamic content,... - [Get the current subscriber](https://kb.mailster.co/get-the-current-subscriber/): Mailster provides methods to retrieve the current subscriber information and their ID. It sets a cookie with the subscriber's hash... - [Where are the module screenshots?](https://kb.mailster.co/where-are-the-module-screenshots/): Mailster generates template screenshots on our server, but issues may arise. Thumbnails may not appear due to uncreated images, server... - [Why does the {post_image} tag not work?](https://kb.mailster.co/why-does-the-post_image-tag-not-work/): The {post_image:X} tag in Mailster allows you to use a post's featured image within your email campaigns. Unlike other tags,... - [How to redirect after form submission?](https://kb.mailster.co/how-to-redirect-after-form-submission/): Mailster forms use AJAX for seamless submissions, providing users with confirmation messages. Users can redirect submissions to specific pages via... - [Keep certain tags in your campaigns](https://kb.mailster.co/keep-certain-tags-in-your-campaigns/): Mailster automatically removes unused tags from your campaign, but you can whitelist specific ones using the 'mailster_keep_tags' filter. Add your... - [Using Mailster Forms (Deprectated)](https://kb.mailster.co/using-mailster-forms/): Mailster offers versatile sign-up forms for various platforms, including WordPress and plain HTML. You can embed forms using shortcodes, a... - [Saving new Template Files](https://kb.mailster.co/saving-new-template-files/): Mailster Templates kickstart your campaigns by allowing customization. Choose a template, start a new campaign, and add desired modules. Save... - [Adding a Terms of Service checkbox to your forms](https://kb.mailster.co/adding-a-terms-of-service-checkbox-to-your-forms/): This article emphasizes the importance of compliance with email marketing laws using Mailster. It enables users to add a mandatory... - [Changing the static Auto Tag Output](https://kb.mailster.co/changing-the-static-auto-tag-output/): Mailster's auto feature allows you to manage static content by modifying the functions. php file. You can customize the output... - [Moving subscribers to different lists](https://kb.mailster.co/moving-subscribers-to-different-lists/): Easily manage subscriber lists in Mailster with simple UI options or custom code. You can assign or unassign subscribers based... - [Adding a Date Picker to your forms](https://kb.mailster.co/adding-a-date-picker-to-your-forms/): For legacy forms, you can enhance date fields by adding a date picker using a simple code snippet. This allows... - [Adding custom code to your website](https://kb.mailster.co/adding-custom-code-to-your-website/): To extend your WordPress site's functionality, you can add custom code in two ways: the theme's functions. php file, which... - [Mails are send but not delivered](https://kb.mailster.co/mails-are-send-but-not-delivered/): Mailster's email delivery relies on your sending server's response, but a "success" message doesn't guarantee inbox delivery. Emails may end... - [How to remove Visual Composer shortcodes in campaigns](https://kb.mailster.co/how-to-remove-visual-composer-shortcodes-in-campaigns/): If you're using Visual Composer in WordPress and encountering shortcode issues with Mailster, you can remove them by adding custom... - [Setup Automatic Bounce Handling](https://kb.mailster.co/setup-automatic-bounce-handling/): Mailster automates bounce processing with proper setup. Assign a dedicated bounce address, enter server credentials, and define bounce check options.... - [Mailster and WooCommerce](https://kb.mailster.co/mailster-and-woocommerce/): Enhance your WooCommerce shop with a free WordPress add-on to convert customers into newsletter subscribers. Automate email workflows based on... - [Access to admin-ajax.php is blocked](https://kb.mailster.co/access-to-admin-ajax-php-is-blocked/): The admin-ajax. php file is crucial for Mailster's backend functions. If it's blocked, issues may arise from plugin conflicts, host... - [Changing text snippets](https://kb.mailster.co/changing-text-snippets/): Mailster lets you customize internal text snippets easily. You can adjust them in the Text tab or use the `mailster_text`... - [Add custom dynamic tags to your newsletter](https://kb.mailster.co/add-custom-dynamic-tags-to-your-newsletter/): Enhance your newsletters with dynamic content using custom tags. By adding code snippets to your theme's functions. php, you can... - [Sending Plain Text Emails](https://kb.mailster.co/sending-plain-text-emails/): To send plain text-like emails in Mailster, create a new campaign, switch to code view, delete the existing HTML, and... - [How to add a Google Maps API Key](https://kb.mailster.co/how-to-add-a-google-maps-api-key/): Mailster integrates Google Maps to visualize subscriber locations. To set it up, create a Google API Key by enabling the... - [Mailster for Developers](https://kb.mailster.co/mailster-for-developers/): Mailster is built for developers, featuring hooks and filters for customization. You can add subscribers easily, manage lists, and even... - [Add Subscribers](https://kb.mailster.co/add-subscribers/): Easily manage subscribers in Mailster using simple code. Add a single email or detailed subscriber info, update existing subscribers, assign... - [Tags in Mailster](https://kb.mailster.co/tags-in-mailster/): Tags in Mailster serve as placeholders in your campaigns, dynamically replaced with subscriber-specific content during sending. Use the format {tagname}... - [How to install Mailster](https://kb.mailster.co/how-to-install-mailster/): To install Mailster, go to the Plugins page, click "Add New," then "Upload Plugin. " Select the mailster-x. x. x-zip... - [Your First Campaign](https://kb.mailster.co/your-first-campaign/): Activate the plugin and create your first campaign via the "New Campaign" option in the "Newsletter" menu. Customize your campaign's... - [Updating MyMail to Mailster](https://kb.mailster.co/updating-mymail-to-mailster/): We're excited to enhance your experience with Mailster by launching a new support and license center. This upgrade allows you... - [Working with action hook auto responders](https://kb.mailster.co/working-with-action-hook-auto-responders/): In this fourth part of our Mailster autoresponder series, we explore Action Hook Auto Responders. These advanced tools require WordPress... - [What is a Cron Lock?](https://kb.mailster.co/what-is-a-cron-lock/): Mailster prevents duplicate emails by creating a cron lock during campaign processing. If a lock is active, you'll see a... - [How to alter the buttons in the text editor?](https://kb.mailster.co/how-to-alter-the-buttons-in-the-text-editor/): Customize your email campaigns using a rich text editor by adding buttons for formatting, font selection, and size. To enhance... - [Post Thumbnail, Oembed, and Open Graph](https://kb.mailster.co/post-thumbnail-oembed-and-open-graph/): Enhance your newsletter campaigns with featured images directly from the editor, just like regular posts. Utilize Mailster's screenshot feature or... - [Subscriber Notification Options](https://kb.mailster.co/subscriber-notification-options/): Manage your subscriber notifications effectively! Enable a summary email for your seven most recent fans, complete with location maps and... - [Send your Newsletters via Amazon's SES](https://kb.mailster.co/send-your-newsletters-via-amazons-ses/): To effectively send newsletters, use a dedicated email service like Amazon SES. Install the Mailster plugin, set up your AWS... - [Changing the dynamic Auto Tag Output](https://kb.mailster.co/changing-the-dynamic-auto-tag-output/): Enhance your Mailster campaigns by customizing dynamic post content through your theme's functions. php file. Use a simple function to... - [SMTP Error: data not accepted](https://kb.mailster.co/smtp-error-data-not-accepted/): SMTP errors can arise from various issues: mismatched sender and username, oversized messages, blacklisted receivers, or temporary server limits. To... - [Why does support expire?](https://kb.mailster.co/why-does-support-expire/): Since September 2015, Envato offers 6 months of included support for purchases. Support can be renewed on the item page,... - [Translations in Mailster](https://kb.mailster.co/translations-in-mailster/): Mailster is a globally used tool with varying language support. To enhance localization, users can participate in the Translation Project,... - [Creating a series in Mailster](https://kb.mailster.co/creating-a-series-in-mailster/): This article recommends using Automation for creating engaging newsletter series in Mailster, known as drip campaigns. It outlines steps to... - [Troubleshooting WordPress in 60 Seconds](https://kb.mailster.co/troubleshooting-wordpress-in-60-seconds/): Mailster adheres to WordPress Coding Standards, ensuring compatibility with compliant plugins and themes. If issues arise, test on the demo... - [Why is my WordPress version no longer supported?](https://kb.mailster.co/why-is-my-wordpress-version-no-longer-supported/): WordPress updates introduce new features and bug fixes. While plugins that worked previously will likely continue to function, unsupported versions... - [Working with action-based autoresponders](https://kb.mailster.co/working-with-action-based-autoresponders/): Explore action-based autoresponders designed to launch campaigns after new content is published. Set up a campaign, define subject lines, and... - [What is DKIM (DomainKeys Identified Mail)?](https://kb.mailster.co/what-is-dkim-domainkeys-identified-mail/): DKIM (DomainKeys Identified Mail) links a domain to an email, ensuring authenticity. To enable DKIM, add a TXT record with... - [Use fullname instead of first- and lastname](https://kb.mailster.co/use-fullname-instead-of-first-and-lastname/): For personalized newsletters, replace the {firstname} and {lastname} tags with {fullname} for a cleaner greeting, like "Hello John! " Instead... - [Working with subscriber-based autoresponders](https://kb.mailster.co/working-with-subscriber-based-autoresponders/): Subscriber auto-responders send automated messages based on user actions like subscription or unsubscription. You can craft personalized welcome emails using... - [Working with time based auto responders](https://kb.mailster.co/working-with-time-based-auto-responders/): Time-based autoresponders send campaigns at specific intervals, like monthly updates of your latest posts. Set up a campaign by defining... - [Get a notification on new subscribers](https://kb.mailster.co/get-a-notification-on-new-subscribers/): Easily receive notifications for new subscribers by enabling the option in the Subscribers tab of your settings. You can also... - [Track your clicks with Google Analytics](https://kb.mailster.co/track-your-clicks-with-google-analytics/): Mailster offers detailed insights into subscriber behavior, including clicks, opens, and unsubscriptions. Easily track your newsletter campaigns alongside website visitors... - [Segmentation in Mailster](https://kb.mailster.co/segmentation-in-mailster/): Segmenting your audience allows for precise targeting in your marketing campaigns. Mailster enables you to create recipient lists and set... - [Add a list of your latest post in your campaign](https://kb.mailster.co/add-a-list-of-your-latest-post-in-your-campaign/): Engage your audience by linking to older blog articles, utilizing dynamic tags for a seamless experience. Enhance visibility with structured... - [Build an Archive of your latest Newsletters](https://kb.mailster.co/build-an-archive-of-your-latest-newsletters/): Easily display your latest campaigns chronologically by enabling the option in Settings. Remember to update permalinks if necessary and flush... - [Setup your Birthday campaign with autoresponders](https://kb.mailster.co/setup-your-birthday-campaign-with-autoresponders/): With Mailster, easily send birthday greetings to subscribers by adding a birthday custom field. Create a campaign, set it to... - [Subscriber based timezone sending](https://kb.mailster.co/subscriber-based-timezone-sending/): Mailster allows you to send campaigns based on your subscribers' time zones, ensuring they receive emails at optimal times. Activate... - [Ignore certain Posts in your Campaigns](https://kb.mailster.co/ignore-certain-posts-in-your-campaigns/): Mailster allows you to automatically send your latest posts to subscribers while easily excluding specific articles. By adding a custom... - [How to add salutation to your subscribers?](https://kb.mailster.co/how-to-add-salutation-to-your-subscribers/): To personalize subscriber greetings, establish custom fields for gender and salutation. Use code snippets to automate salutations based on gender... - [How can subscribers update their subscription?](https://kb.mailster.co/how-can-subscribers-update-their-subscription/): Enable subscribers to update their data by adding a {profile} tag in your newsletter campaigns. This redirects them to a... - [Why does tracking not work?](https://kb.mailster.co/why-does-tracking-not-work/): If your campaign statistics show no opens or clicks, try sending a test campaign to check links, ensure Mailster isn’t... - [How to handle bounces with SendGrid?](https://kb.mailster.co/how-to-handle-bounces-with-sendgrid/): To automatically manage bounces in Mailster using SendGrid, install the SendGrid Integration plugin. Choose SendGrid on the delivery tab to... - [How to solve database errors?](https://kb.mailster.co/how-to-solve-database-errors/): If you see an error about missing Mailster tables, visit your update page at https://yourdomain. com/wp-admin/admin. php? page=mailster_update (replace with... - [How does tracking in Mailster work?](https://kb.mailster.co/how-does-tracking-in-mailster-work/): Mailster enables tracking of opens, clicks, unsubscribes, and bounces. It counts opens via a small image loaded from your server;... - [How can I increase the sending speed?](https://kb.mailster.co/how-can-i-increase-the-sending-speed/): To enhance Mailster's email delivery rates, consider reducing the cron interval, increasing the number of emails sent at once, or... - [Choosing your Delivery Method](https://kb.mailster.co/choosing-your-delivery-method/): Mailster offers two default delivery methods: Simple SMTP and SMTP. Simple SMTP is not recommended for bulk mailing due to... - [Why do the links in my emails not work?](https://kb.mailster.co/why-do-the-links-in-my-emails-not-work/): If subscribers can't confirm their Mailster subscription or encounter broken links, ensure your permalink structure is set correctly (Settings =>... - [How can I use short codes in Mailster campaigns?](https://kb.mailster.co/how-can-i-use-short-codes-in-mailster-campaigns/): Shortcodes are disabled by default in Mailster to prevent HTML injection that could disrupt emails. Users can enable them in... - [SMTP Error: Could not connect to SMTP host.](https://kb.mailster.co/smtp-error-could-not-connect-to-smtp-host/): If you encounter an SMTP connection error, it’s likely due to your email service provider rejecting one of your email... - [How can I use Mailster with the wp_mail function?](https://kb.mailster.co/how-can-i-use-mailster-with-the-wp_mail-function/): Mailster allows you to enhance email delivery by overriding the default wp_mail function. Choose from three settings: bypass Mailster, use... - [How can I manually upload Mailster templates?](https://kb.mailster.co/how-can-i-manually-upload-mailster-templates/): Upload templates via FTP if the Templates section isn't suitable. Extract your downloaded archive and place the folder in "wp-content/uploads/mailster/templates"... - [How do I know if my cron is working correctly?](https://kb.mailster.co/how-do-i-know-if-my-cron-is-working-correctly/): Mailster requires a cron job to send campaigns. Check its status under Newsletter > Settings > Cron, where you can... - [Why do some of my subscribers get a status of "error"?](https://kb.mailster.co/why-do-some-of-my-subscribers-get-a-status-of-error/): When sending campaigns, subscribers may be marked as errors due to invalid email addresses, non-existent domains, or server rejections. While... - [How colors work with the Mailster Editor?](https://kb.mailster.co/how-colors-work-with-the-mailster-editor/): Colors in the Mailster Editor are determined by the template's HTML and only recognize 6-digit hex codes (e. g. ,... - [Why does the unsubscribe link not work?](https://kb.mailster.co/why-does-the-unsubscribe-link-not-work/): Occasionally, unsubscribe links in campaigns may lead to a "404 - Not Found" error. To resolve this, ensure Mailster is... - [How can I send newsletters via GoDaddy?](https://kb.mailster.co/how-can-i-send-newsletters-via-godaddy/): Using GoDaddy's email servers is possible but comes with restrictions. Limit your SMTP sends to 500 emails per account, ensure... - [How can I add a captcha to the sign up form?](https://kb.mailster.co/how-can-i-add-a-captcha-to-the-sign-up-form/): Discover two free plugins for enhanced form security: Mailster Cool Captcha and Mailster reCaptcha™. Both are available on the WordPress... - [How can I setup the newsletter homepage (legacy)?](https://kb.mailster.co/how-can-i-setup-the-newsletter-homepage-legacy/): Mailster requires a static newsletter homepage for subscription management. This page, accessible at http://yourdomain. tld/newsletter-signup, utilizes essential shortcodes for signups,... - [SMTP Error: Could not authenticate](https://kb.mailster.co/smtp-error-could-not-authenticate/): Campaigns may pause or fail to send emails due to SMTP authentication errors, incorrect credentials, or blocked ports. Ensure you’re... - [Can I add attachments to my newsletter?](https://kb.mailster.co/can-i-add-attachments-to-my-newsletter/): Enhance your campaigns by adding attachments via the campaign edit screen, with a total size limit of 1MB (modifiable to... - [Why I can't save templates or other files?](https://kb.mailster.co/why-i-cant-save-templates-or-other-files/): Troubleshooting issues with saving templates in WordPress plugins like Mailster can be frustrating. Common causes include permission errors, plugin conflicts,... - [Why do I get this parse error?](https://kb.mailster.co/why-do-i-get-this-parse-error/): Mailster may display a "parsererror 200" when an Ajax request fails to return valid JSON, often due to third-party plugins... - [How can I open the browsers console?](https://kb.mailster.co/how-can-i-open-the-browsers-console/): The Browser Console is essential for tracking JavaScript errors and server-related information. Access it in Chrome (CTRL + SHIFT +... - [Why I'm not able to connect to bounce server?](https://kb.mailster.co/why-im-not-able-to-connect-to-bounce-server/): To set up a bounce server, use port 110 or 995 for SSL connections. If you encounter an "Unable to... - [Why can't I use SMTP?](https://kb.mailster.co/why-cant-i-use-smtp/): SMTP (Simple Mail Transfer Protocol) utilizes various ports (25, 993, 465, 587) for email sending, but providers may block specific... - [Mailster is not able to access the file system](https://kb.mailster.co/mailster-is-not-able-to-access-the-file-system/): To resolve Mailster's file system writing issues, adjust your WordPress file permissions or add `define('FS_METHOD', 'direct');` in your wp-config. php.... - [How can I setup a cron job?](https://kb.mailster.co/how-can-i-setup-a-cron-job/): Ensure your email campaigns are sent correctly by properly setting up your cron. You can use WP-cron for automatic scheduling... - [What are my sending limits?](https://kb.mailster.co/what-are-my-sending-limits/): Mailster allows you to customize email sending rates to comply with your provider's limits, typically 1-2 emails per second. Customers... - [How can I customize the notification template?](https://kb.mailster.co/how-can-i-customize-the-notification-template/): Mailster allows you to customize notification emails using the campaign editor. Create a new campaign, select the notification template, and... - [Mailster doesn't work with [third party plugin]](https://kb.mailster.co/mailster-doesnt-work-with-a-third-party-plugin/): Mailster aims for compatibility with popular plugins by adhering to WordPress Coding Standards. If issues arise, follow our debugging guide:... - [How can I prevent that my campaigns went in spam folder?](https://kb.mailster.co/how-can-i-prevent-that-my-campaigns-went-in-spam-folder/): To avoid spam filters in email campaigns, conduct a spam score test, use a dedicated Email Service Provider (ESP), and... - [What is the CAN-SPAM act and do my newsletters have to comply?](https://kb.mailster.co/what-is-the-can-spam-act-and-do-my-newsletters-have-to-comply/): The CAN-SPAM Act of 2003, signed by President Bush, established national standards for commercial email in the U. S. It... - [The latest cronjob hasn't been finished](https://kb.mailster.co/the-latest-cronjob-hasnt-been-finished/): Email delays may lead to server timeouts and inaccurate statistics. If you receive a notification, it could be temporary and... - [How can I increase my memory limit?](https://kb.mailster.co/how-can-i-increase-my-memory-limit/): Encountering the "Allowed memory size exhausted" error in WordPress indicates the need to increase your PHP memory limit. This guide... - [How can I update to the latest version?](https://kb.mailster.co/how-can-i-update-to-the-latest-version/): To update Mailster, visit your WordPress Updates page or enable automatic updates in settings. You can also update via your... - [My provider doesn't allow sending bulk mails](https://kb.mailster.co/my-provider-doesnt-allow-sending-bulk-mails/): Your provider restricts bulk and outgoing mail. Consider using dedicated email services like SendGrid, Mandrill, Amazon SES, or SparkPost. If... - [How do I export my subscribers?](https://kb.mailster.co/how-do-i-export-my-subscribers/): Easily export your subscribers from the "Manage Subscribers" page by selecting the "Export" tab. Choose your lists, set conditions, and... - [Why I get a "Could not execute:/usr/sbin/sendmail" error message?](https://kb.mailster.co/why-i-get-a-could-not-execute-usr-sbin-sendmail-error-message/): Sendmail is a widely used mail transfer client, but ensure the path "/usr/sbin/sendmail" is correct and you have permission to... - [Why my campaigns do not get sent?](https://kb.mailster.co/why-my-campaigns-do-not-get-sent/): If your email campaign isn't sending, check key settings: verify newsletter delivery and cron job functionality, ensure server resources are... - [Why are my auto responders not getting send?](https://kb.mailster.co/why-are-my-auto-responders-not-getting-send/): Setting up a custom autoresponder can be challenging. If you're facing issues, check that your campaigns are active, emails can... - [Where's my purchase code?](https://kb.mailster.co/where-is-my-purchasecode/): To find your Mailster Newsletter Plugin license code from the Envato Marketplace, log in, go to "Downloads," select the plugin,... --- ## Pages - [Changelog](https://kb.mailster.co/changelog/): Version 4. 1. 10 enhances the capabilities and permissions system, improves error handling in form blocks, and refines homepage editing... - [Contact](https://kb.mailster.co/contact/): Need support? Check our knowledge base and documentation first. For Mailster help, register and create a ticket in our Member... --- # # Detailed Content ## Posts - Published: 2025-10-17 - Modified: 2025-10-17 - URL: https://kb.mailster.co/mailster-database-structure/ - Categories: Developer - Tags: sql --- - Published: 2025-05-15 - Modified: 2025-10-06 - URL: https://kb.mailster.co/do-i-have-to-store-the-users-ip-address/ - Categories: Tips - Tags: gdpr, legal When managing an email marketing list, responsibly collecting user data is key for compliance and deliverability. Storing IP addresses isn't universally required, but it’s recommended in regions like the EU and Canada to prove consent. Keeping detailed consent records protects against legal issues and builds trust with subscribers. --- - Published: 2025-04-01 - Modified: 2025-04-29 - URL: https://kb.mailster.co/time-based-sending/ - Categories: Deliverability, Settings - Tags: subscribers Mailster's Time Frame settings allow you to control when email campaigns and autoresponders are sent, enhancing engagement and respecting recipients' schedules. Customize sending days, times, and time zones to optimize delivery, while ensuring transactional emails are sent immediately, regardless of these settings. --- - Published: 2025-03-31 - Modified: 2025-05-21 - URL: https://kb.mailster.co/subscriber-detail/ - Categories: Settings - Tags: subscribers Each subscriber has a detailed page with their email, name, status, subscription info, GDPR consent, custom fields, and more. You’ll also see their location, timezone, email clients used, activity stats like opens and clicks, and total campaigns sent. Check out the demo to see it in action! --- - Published: 2025-03-31 - Modified: 2025-04-29 - URL: https://kb.mailster.co/custom-fields/ - Categories: Advanced - Tags: subscribers With custom fields in Mailster, you can enhance subscriber info beyond the basics like email and name. Add details like gender, company, or social media handles. Easily create new fields on the settings page and use them in your campaigns with simple tags. --- - Published: 2025-03-31 - Modified: 2025-05-21 - URL: https://kb.mailster.co/auto-responder/ - Categories: _ - Tags: autoresponder Mailster's auto-responder feature automates your email marketing with six types, including subscriber-based, action-based, and time-based options. It lets you send targeted campaigns after specific events or time intervals, making it easier to engage with your audience. Test it out on our demo! --- - Published: 2025-03-31 - Modified: 2025-04-29 - URL: https://kb.mailster.co/notifications-template/ - Categories: Customization - Tags: template Mailster can send transactional emails using a special template. Starting from version 4.0, it uses a base template, typically notification.html. This template needs two tags: {headline} for the subject and {content} for the email body, allowing you to manage outgoing emails from your WordPress site. --- - Published: 2025-03-31 - Modified: 2025-05-21 - URL: https://kb.mailster.co/preheaders/ - Categories: _ - Tags: preheader Preheaders are short phrases that boost your email's click-through rate by appearing in the preview pane of some email clients. In Mailster, you can customize preheaders for each campaign, even adding emojis. Check out handy guides to make the most of your preview text! --- - Published: 2025-03-31 - Modified: 2025-04-29 - URL: https://kb.mailster.co/widgets/ - Categories: _ - Tags: widgets Mailster offers four handy widgets for your WordPress site, found under the Appearance menu. You can add a signup form, display your latest newsletters, show your subscriber count, or include a subscriber button, all with customizable text options before and after. --- - Published: 2025-03-31 - Modified: 2025-05-21 - URL: https://kb.mailster.co/shortcodes/ - Categories: Advanced - Tags: shortcodes Mailster offers five handy shortcodes for easy newsletter integration. Use to embed campaigns, for recent newsletters, and for sign-up forms. You can also check subscriber counts with . Note that some codes, like and , are now deprecated. --- - Published: 2025-03-24 - Modified: 2025-04-21 - URL: https://kb.mailster.co/mail-app-unsubscribe/ - Categories: Deliverability - Tags: deliverability Mailster includes a List Unsubscribe Header in newsletter campaigns, facilitating easy opt-outs through mailto or URL links. This feature enhances user experience, boosts email deliverability, and ensures compliance with anti-spam regulations. Major email clients like Gmail and Apple Mail support this header, providing clear unsubscribe options for recipients. --- - Published: 2025-03-24 - Modified: 2025-04-20 - URL: https://kb.mailster.co/do-not-track-dnt/ - Categories: Privacy - Tags: privacy The Do Not Track (DNT) mechanism allows users to signal their preference against online tracking via a browser setting. Despite its introduction in 2010, DNT lacks enforcement, as websites are not legally required to comply. Consequently, many ignore the signal, diminishing its efficacy amidst stronger privacy measures. --- - Published: 2025-03-24 - Modified: 2025-05-21 - URL: https://kb.mailster.co/security-settings/ - Categories: Privacy, Settings - Tags: security Mailster's Security Settings enhance campaign protection by validating emails, blocking spam, and preventing duplicate signups. Key features include MX record checks, SMTP validation, honeypots for bots, antiflood controls, and options to block disposable emails, specific addresses, domains, IPs, and countries while allowing safe domains. --- - Published: 2025-03-19 - Modified: 2025-04-29 - URL: https://kb.mailster.co/capablities-in-mailster/ - Categories: Advanced, Privacy, Settings - Tags: capablities Mailster empowers WordPress users by providing customizable role-based access to manage campaigns, subscribers, and templates. With default roles like Administrator and Editor, you can define specific capabilities using plugins like "User Role Editor." This ensures control over who can create, edit, or send campaigns efficiently. --- - Published: 2025-01-16 - Modified: 2025-04-20 - URL: https://kb.mailster.co/how-to-change-ownership-of-a-license/ - Categories: Account & Licenses - Tags: license Easily transfer your Mailster license via the WordPress dashboard by navigating to "Newsletter" > "Account," editing the email address, and confirming the new owner's details. Alternatively, manage licenses directly from your Mailster account without WordPress access. --- - Published: 2025-01-11 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-trigger-subscriber-added-to-a-list/ - Categories: Automation - Tags: trigger - Post series: Trigger This trigger kicks off a workflow whenever a subscriber is added or removed from a list, no matter who did it. It’s like the Form Conversion Trigger but without needing a form. Just select the lists you want to activate the workflow for. --- - Published: 2025-01-11 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-trigger-tag-added/ - Categories: Automation - Tags: trigger - Post series: Trigger This trigger kicks off a workflow whenever a tag is added or removed from a subscriber, no matter who made the change. You can select multiple tags to activate the workflow whenever they are assigned. --- - Published: 2025-01-11 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-trigger-field-updated/ - Categories: Automation - Tags: trigger - Post series: Trigger This trigger kicks off a workflow when a specific subscriber field is added or updated. You can set which field to watch for changes, and updates can be made by either the subscribers themselves or anyone with the right permissions. --- - Published: 2025-01-11 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-trigger-specific-date/ - Categories: Automation - Tags: trigger - Post series: Trigger This trigger launches a workflow on a set date, perfect for sending birthday or anniversary messages. You can use specific dates for all subscribers or custom field dates for individual emails. Plus, adjust the timing with an offset to send messages earlier or later. --- - Published: 2025-01-11 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-trigger-form-conversion/ - Categories: Automation - Tags: trigger - Post series: Trigger This trigger kicks off a workflow when a user signs up and confirms their subscription through a chosen form. If double-opt-in is off, it activates right after the form is submitted. Just pick at least one form or select "Any Form" to use it! --- - Published: 2025-01-11 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-trigger-anniversary/ - Categories: Automation - Tags: trigger - Post series: Trigger Celebrate your subscribers' special moments with anniversary workflows! Use specific dates for all subscribers or custom field dates for personalized events like birthdays. You can set up reminders with offsets to send emails before or after the date. Keep it simple for maximum impact! --- - Published: 2025-01-11 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-trigger-click-a-link/ - Categories: Automation - Tags: trigger - Post series: Trigger Set up a workflow that activates when specific links are clicked in your campaigns. You can track both internal and external links, just remember to enter the full URLs. Make sure the links are part of your campaign to trigger the desired action! --- - Published: 2025-01-11 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-trigger-visits-a-page/ - Categories: Automation - Tags: trigger - Post series: Trigger You can set up workflows to trigger when subscribers visit specific pages on your website. To qualify, they must have clicked a link in your campaign or signed up for your newsletter. Logged-in WordPress users with linked subscribers also trigger the workflow. --- - Published: 2025-01-11 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-trigger-custom-hook/ - Categories: Automation - Tags: trigger - Post series: Trigger You can run a workflow with custom PHP code by using "Custom Hook" as your trigger. Define the hook's name, and use it to target specific subscribers or all of them. Just add the PHP code to a plugin or your theme's functions.php for easy integration. --- - Published: 2025-01-11 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-trigger-subscriber-removed-to-a-list/ - Categories: Automation - Tags: trigger - Post series: Trigger This trigger kicks off a workflow anytime a subscriber is removed from a list. You can also set it up to start when someone is added. Just select the lists you want to monitor, and the workflow will activate whenever there's a match. --- - Published: 2025-01-11 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-trigger-tag-removed/ - Categories: Automation - Tags: trigger - Post series: Trigger This trigger kicks off a workflow whenever a tag is removed from a subscriber. You can also set it to run when a tag is added. It works regardless of who makes the change, as long as the lists match. Choose any tags to start the workflow! --- - Published: 2024-09-02 - Modified: 2025-04-20 - URL: https://kb.mailster.co/upgrading-your-license/ - Categories: Account & Licenses - Tags: license With Mailster, you can easily switch or upgrade your plan anytime. Simply access the "Account" page in the WordPress Dashboard or log into your Mailster account to manage your license options. Note: The change option is unavailable if sensitive info is hidden on your site. --- - Published: 2024-08-07 - Modified: 2025-04-29 - URL: https://kb.mailster.co/missing-or-wrong-translations/ - Categories: Troubleshoot - Tags: language, translate, translation Mailster supports over 20 languages, featuring 3,500 strings. To help maintain accurate translations, join our Translator Program and receive a free Professional subscription by assisting in updating your preferred language. Spot a mistake? Sign up today! --- - Published: 2024-08-05 - Modified: 2025-04-21 - URL: https://kb.mailster.co/inspect-the-queue-of-your-workflow-step/ - Categories: Automation - Tags: automation, queue In Mailster, steps typically process in sequence, but certain actions like Delay or Email may require queuing subscribers. The current subscriber count is displayed, and clicking it opens the Queue Inspector. Users can choose to Finish, Forward, or Remove subscribers from the queue, managing workflow efficiently. --- - Published: 2024-05-02 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-jumper/ - Categories: Automation - Tags: automation - Post series: Automations Jumpers streamline your workflow by allowing you to skip steps or navigate to specific points in the customer journey. Easily set up a Jumper in the Inserter, select the desired step to jump to, and define any conditions for when the jump occurs. --- - Published: 2024-05-02 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-notification/ - Categories: Automation - Tags: automation - Post series: Automations Set up email notifications in your workflow by adding a Notification step. Enter the recipient's email, define a subject, and compose a message using placeholder tags for personalization. Be cautious, as multiple notifications may flood your inbox, but each will include a link for easy access to adjustments. --- - Published: 2024-01-28 - Modified: 2025-05-21 - URL: https://kb.mailster.co/how-to-manage-your-licenses-for-mailster/ - Categories: Account & Licenses - Tags: freemius, license Freemius uses license keys for product access, ensuring support and automatic updates. After purchase, you'll receive an email with your license key, and you can also find it on the Mailster Account page. Without a license, plugins can be used but won't receive updates or support. --- - Published: 2024-01-15 - Modified: 2025-04-20 - URL: https://kb.mailster.co/email-health-check/ - Categories: Advanced - Tags: precheck, spam Gmail and Yahoo will enforce new sender authentication policies from February 1, 2024, targeting bulk senders—those emailing over 5,000 recipients daily. To combat spam, they require SPF, DKIM, and DMARC compliance, easy unsubscription options, and a spam complaint rate below 0.3%. Non-compliance may result in emails being marked as spam. --- - Published: 2023-11-16 - Modified: 2025-04-20 - URL: https://kb.mailster.co/custom-modules/ - Categories: Advanced, Customization - Tags: modules Modules are customizable sections in your newsletter templates, allowing you to drag and drop various blocks to design your emails. Create custom modules by modifying existing ones, saving them for future use. Easily delete any unwanted custom modules through the module selector. --- - Published: 2023-11-10 - Modified: 2025-04-21 - URL: https://kb.mailster.co/send-your-newsletters-via-mailjet/ - Categories: Integrations - Tags: mailjet Mailjet is an efficient email marketing tool that integrates with Mailster, offering robust bounce handling support. To get started, create an account, verify your domain, configure SPF/DKIM for spam protection, set up webhooks for bounce management, and send a test email to ensure everything works smoothly. --- - Published: 2023-09-15 - Modified: 2025-04-21 - URL: https://kb.mailster.co/convert-your-legacy-forms/ - Categories: Forms - Tags: forms Mailster 4.0 introduces a new form builder based on the WordPress block editor, requiring users to convert existing legacy forms. Legacy forms will remain functional but won't receive updates. Users can convert forms via the "Convert to Block Form" link and may need to adjust custom CSS. Shortcodes are available for unsupported blocks. --- - Published: 2023-05-15 - Modified: 2025-05-21 - URL: https://kb.mailster.co/email-automation-triggers/ - Categories: Automation - Tags: automation - Post series: Automations Mailster's email marketing automation allows you to create workflows initiated by triggers. With up to five available triggers—like subscriber additions, tag updates, and link clicks—you can customize your campaigns. Conditions ensure targeted delivery, and workflows can repeat based on your defined limits, enhancing engagement without spamming. --- - Published: 2023-05-15 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-actions/ - Categories: Automation - Tags: automation - Post series: Automations Mailster's actions enhance your email automation workflow by allowing you to update custom fields, manage subscriber lists, add or remove tags, unsubscribe users, and send data to third-party URLs. Each action can trigger additional workflows for streamlined communication and management. --- - Published: 2023-05-15 - Modified: 2025-04-29 - URL: https://kb.mailster.co/email-automation-delay/ - Categories: Automation - Tags: automation - Post series: Automations Incorporating a delay step in your workflow introduces a strategic pause, allowing for better timing of subsequent actions. Options include delaying by a specific duration or until a designated time, ensuring flexibility in workflow management. If the specified time is missed, the next available timeframe will be utilized. --- - Published: 2023-05-15 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-email/ - Categories: Automation - Tags: automation - Post series: Automations At this stage, an email is sent to subscribers, allowing for campaign customization and tracking. Ensure a reasonable delay between emails and use conditions for targeted sending. Configure your cron settings accurately, and manage campaigns within the workflow for efficient email dispatch. --- - Published: 2023-05-14 - Modified: 2025-04-21 - URL: https://kb.mailster.co/email-automation-in-wordpress/ - Categories: Automation, Getting Started - Tags: automation - Post series: Automations Mailster automates email marketing, enhancing communication and customer engagement through customizable workflows. Key components include triggers and actions, allowing for personalized messaging, delays for timing, and conditions to tailor paths. Users can easily create workflows, manage email statistics, and add comments for clarity. --- - Published: 2023-05-13 - Modified: 2025-04-20 - URL: https://kb.mailster.co/kitchen-sink/ - Categories: _ This article highlights the new WordPress editor, designed to make adding and organizing content easier. It features block-based editing, allowing you to move text, images, and other elements effortlessly. The inserter tool simplifies adding various content types, enhancing your editing experience without needing to know HTML. --- - Published: 2023-05-04 - Modified: 2025-04-29 - URL: https://kb.mailster.co/convert-your-newsletter-homepage/ - Categories: Legacy - Tags: block forms, forms, frontend Upgrade your newsletter homepage by migrating from shortcodes to new block forms. Remove outdated shortcodes (, , ) and add the Mailster Newsletter Block. For detailed steps, visit our guide. Don't miss the chance to modernize your communication! --- - Published: 2023-05-04 - Modified: 2025-04-29 - URL: https://kb.mailster.co/how-can-i-setup-the-newsletter-homepage/ - Categories: Getting Started - Tags: frontend To set up your newsletter with Mailster, create a static homepage to manage subscriptions. This page, called "Newsletter," is auto-generated during setup. You can customize sections for signing up, updating profiles, and unsubscribing. Adjust settings easily in WordPress to fit your needs. --- - Published: 2023-04-13 - Modified: 2025-05-21 - URL: https://kb.mailster.co/update-billing-details-and-access-invoices/ - Categories: Account & Licenses - Tags: billing Updating your Freemius billing information is easy! Log in to your account at https://mailster.co/account, go to My Profile, and enter your new details. Changes will reflect on future invoices. You can also download past invoices from the Orders History tab. --- - Published: 2023-03-21 - Modified: 2025-04-20 - URL: https://kb.mailster.co/change-the-length-of-the-excerpt/ - Categories: Customization - Tags: filters WordPress allows customization of excerpt length through the excerpt_length filter. Mailster offers a similar feature using the mailster_excerpt_length filter, enabling you to set a specific length for excerpts in email campaigns. For example, use code to set the excerpt length to 20 words. --- - Published: 2023-03-15 - Modified: 2025-04-20 - URL: https://kb.mailster.co/how-can-i-upgrade-my-license/ - Categories: Account & Licenses - Tags: license Upgrade your license directly from the plugin by navigating to Newsletter => Account and clicking "Change Plan." Enter your license key if white-labeled, then input payment details. Optionally, add another license and enter a VAT ID if applicable. Review your order and click "Pay & Subscribe" to complete the process. --- - Published: 2023-03-15 - Modified: 2025-04-20 - URL: https://kb.mailster.co/logging-outgoing-mails-in-mailster/ - Categories: Advanced - Tags: logging Mailster allows you to log outgoing emails in WordPress. Enable logging in the Newsletter settings, define entry limits, and access detailed logs of sent emails, including recipient information and campaign details. Ensure privacy by limiting logging duration and restricting access to authorized users only. --- - Published: 2023-03-15 - Modified: 2025-04-20 - URL: https://kb.mailster.co/why-does-my-legacy-license-expire/ - Categories: Account & Licenses - Tags: license If you purchased an Envato license after October 1, 2022, it will expire in five months, halting automatic updates via WordPress. You can either upgrade your license for future updates or download the latest version from your Envato account. Your license remains valid for life per Envato's terms. --- - Published: 2023-03-14 - Modified: 2025-04-21 - URL: https://kb.mailster.co/licensing-information/ - Categories: Account & Licenses - Tags: legacy, license, purchase code You can purchase Mailster from either mailster.co or CodeCanyon. Each license is domain-specific, allowing use on unlimited subdirectories. You can change the assigned domain up to three times. Licenses bought after October 1, 2022, receive six months of auto-updates. For additional licenses, visit the purchase link. --- - Published: 2023-03-13 - Modified: 2025-04-21 - URL: https://kb.mailster.co/static-map-service/ - Categories: Settings - Tags: maps Mailster offers three static map options: no maps, OpenStreetMaps for privacy, or Google Maps for high-quality visuals. Adjust your preference in Settings => General. Note that Google Maps requires an API key and may have display restrictions in emails. Choose the option that best fits your needs. --- - Published: 2023-02-27 - Modified: 2025-04-21 - URL: https://kb.mailster.co/block-forms/ - Categories: Forms - Tags: form, forms Manage your block forms easily through the "Block Forms" menu in the Newsletter section. Create new forms with templates, customize fields, and set up options like double opt-in and GDPR compliance. You can also style forms, define placements, and use pop-ups to enhance user engagement. --- - Published: 2023-02-26 - Modified: 2025-04-29 - URL: https://kb.mailster.co/subscribers-overview/ - Categories: Getting Started - Tags: subscribers Mailster makes it easy to manage your subscribers right in WordPress. You can view, search, and filter subscribers by status. Use search modifiers to refine results, and perform bulk actions like sending campaigns or updating statuses. Keep your subscriber list organized and efficient! --- - Published: 2023-02-26 - Modified: 2025-04-29 - URL: https://kb.mailster.co/finished-campaigns/ - Categories: Getting Started - Tags: campaigns Mailster offers in-depth campaign statistics, including total recipients, click rates, device usage, and geographic location of opens. You can filter data and explore details on clicks, device types, and locations, enhancing your understanding of subscriber engagement. Note that editing is not possible once a campaign is live. --- - Published: 2023-02-26 - Modified: 2025-04-29 - URL: https://kb.mailster.co/delete-subscribers/ - Categories: _ - Tags: subscribers You can easily delete subscribers in Mailster to keep your list healthy. Use the Delete Subscribers page for bulk actions, set conditions, and manage statuses. Mailster automates this process, marking inactive contacts for removal after 14 days. Regularly cleaning your list boosts engagement and reduces spam complaints. --- - Published: 2023-02-26 - Modified: 2025-05-21 - URL: https://kb.mailster.co/create-custom-templates/ - Categories: Customization, Templates - Tags: templates A Mailster Template is a folder with essential files for creating email templates. It must include at least two files: index.html for modules and notification.html for alerts. Templates follow a specific structure, allowing customization through modules, headers, and footers, ensuring clean and effective email design. --- - Published: 2023-02-26 - Modified: 2025-04-29 - URL: https://kb.mailster.co/templates/ - Categories: Templates - Tags: templates Mailster templates shape your campaign's design, accessible under Newsletter => Templates in your WordPress Dashboard. You can upload purchased or compatible third-party templates, including those from Envato Marketplace. Simply ensure they're valid Mailster ZIP files to successfully add and start using them in your campaigns. --- - Published: 2023-02-25 - Modified: 2025-04-29 - URL: https://kb.mailster.co/precheck/ - Categories: Getting Started - Tags: campaigns, deliverability, precheck Mailster's Precheck feature allows you to efficiently assess your campaign's deliverability. It analyzes subject lines, links, images, and provides a SpamAssassin score. Additionally, it checks authentication methods and your server's IP against over 50 blocklists, ensuring your emails reach their destination without compromising privacy. --- - Published: 2023-02-25 - Modified: 2025-04-29 - URL: https://kb.mailster.co/the-campaign-editor/ - Categories: _ - Tags: campaigns The Mailster campaign editor simplifies campaign creation, allowing users to design campaigns and autoresponders easily. Key features include customizable titles, module-based content addition, and delivery options. Users can target specific subscriber lists and adjust tracking settings, ensuring effective email marketing tailored to their needs. --- - Published: 2023-02-25 - Modified: 2025-04-29 - URL: https://kb.mailster.co/frontpage/ - Categories: Settings - Tags: frontend The Frontpage displays your newsletter in a web format, featuring navigation buttons, a share option, and customizable settings. You can manage search engine visibility, enable or disable the top bar, customize homepage slugs, and create an archive of your campaigns in reverse chronological order. --- - Published: 2023-02-25 - Modified: 2025-04-29 - URL: https://kb.mailster.co/campaign-overview/ - Categories: Getting Started - Tags: campaigns The Campaign Overview page provides a snapshot of all your campaigns, displaying subscriber statuses and performance metrics. Campaigns can have various statuses like Paused, Queued, Active, Finished, Draft, and Pending. Metrics such as open rates and unsubscribe rates help assess campaign performance, with options for bulk actions to manage multiple campaigns efficiently. --- - Published: 2023-02-24 - Modified: 2025-04-29 - URL: https://kb.mailster.co/i-have-problems-with-sending-campaigns/ - Categories: Troubleshoot - Tags: campaigns, delivery If you experience issues sending your campaigns, verify your cron setup, as it's crucial for successful delivery. Check for cron locks that may prevent duplicate emails and ensure your RSS feed URLs are accessible. For further assistance, consult our help article. --- - Published: 2023-02-22 - Modified: 2025-04-29 - URL: https://kb.mailster.co/how-to-read-metrics-on-the-campaign-overview-page/ - Categories: Getting Started - Tags: campaigns The Campaign Overview page provides insights into campaign performance, highlighting key metrics. With 8,318 total receivers, the campaign achieved a 33.88% open rate (2,828 opens) and a 5.11% adjusted click-through rate (427 clicks). Unsubscribes were at 94 (1.13%), with a bounce rate of 0.36%. --- - Published: 2023-02-22 - Modified: 2025-04-29 - URL: https://kb.mailster.co/how-do-i-import-my-subscribers/ - Categories: Getting Started - Tags: import, subscribers Before launching your first email campaign with Mailster, import your existing subscribers on the “Manage Subscribers” page. You can upload a CSV, paste from a spreadsheet, or import WordPress users. Choose how to handle existing subscribers and set their status before finalizing the import. --- - Published: 2023-02-15 - Modified: 2025-05-21 - URL: https://kb.mailster.co/migrating-your-license-to-freemius/ - Categories: Account & Licenses - Tags: license To continue using Mailster after purchasing it on Envato, migrate your license to Freemius via the WordPress Dashboard. Enter your Envato purchase code and email, then click "Migrate to Freemius now." This ensures you receive updates and manage your license effectively. Don't delay migration to avoid losing access to features! --- - Published: 2022-11-08 - Modified: 2025-04-20 - URL: https://kb.mailster.co/use-advanced-custom-fields-in-your-newsletter-campaigns/ - Categories: Advanced - Tags: acf, advanced custom fields Advanced Custom Fields (ACF) enhances WordPress by allowing users to add custom fields to edit screens, streamlining website development and client education. With Mailster integration, these custom fields can be utilized in email campaigns, enabling personalized content through simple tag formatting. --- - Published: 2022-10-27 - Modified: 2025-04-20 - URL: https://kb.mailster.co/trigger-custom-javascript-on-form-submission/ - Categories: Advanced, Forms Mailster Block Forms allows you to run custom JavaScript to track form submissions via Analytics. Access the "Events" section to define your code for five event types: Impression, Open, Close, Submit, and Error. Each event provides specific context and allows you to send data to Google Analytics or Plausible. --- - Published: 2021-06-09 - Modified: 2025-04-20 - URL: https://kb.mailster.co/prevent-spam-filters-from-automatically-opening-and-clicking-through-links-in-your-campaigns/ - Categories: _ - Tags: spam Email spam filters may click links in your emails, leading to false open rates and unintended unsubscribes. Mailster offers an "Auto Click Prevention" option to counter this. By redirecting link clicks through a proxy page, it ensures accurate user engagement metrics while safeguarding against bot interference. --- - Published: 2021-06-09 - Modified: 2025-04-21 - URL: https://kb.mailster.co/send-your-emails-as-fast-as-possible/ - Categories: Deliverability - Tags: delivery Mailster sends emails in batches to avoid server timeouts and delivery bans. You can enable automatic batch size adjustment based on your server's capabilities. However, be cautious of your email provider's limits, as this option prevents manual size settings and may require time to optimize batch delivery. --- - Published: 2021-06-09 - Modified: 2025-04-29 - URL: https://kb.mailster.co/warm-up-your-email-delivery-method/ - Categories: Advanced, Deliverability, Settings - Tags: delivery When starting with email marketing or changing providers, avoid sending too many emails at once. Use Mailster’s Warmup settings to gradually increase your email throughput. Set a timeframe for warming up your server, allowing Mailster to adjust send rates and batch sizes over time for optimal delivery. --- - Published: 2021-04-13 - Modified: 2025-04-21 - URL: https://kb.mailster.co/how-many-mails-can-i-send-at-once/ - Categories: Deliverability - Tags: delivery Optimize your email marketing by balancing throughput rate and batch size to avoid server timeouts. Determine your server's email capacity and adjust your cron interval for efficient sending. For instance, sending 20 emails every 5 minutes allows for 240 emails per hour, while 40 doubles that to 480. --- - Published: 2021-03-22 - Modified: 2025-04-29 - URL: https://kb.mailster.co/manually-replacing-a-mailster-version/ - Categories: Account & Licenses - Tags: update Mailster includes security features to protect against malicious versions. To ensure you have a legitimate copy, obtain a valid license from EverPress, replace the plugin on your website, and register your purchase code in the Mailster Dashboard. Follow these steps to maintain a secure installation. --- - Published: 2020-10-06 - Modified: 2025-05-21 - URL: https://kb.mailster.co/mailster-customization-services/ - Categories: Customization - Tags: codeable Need custom website work? Partner with Codeable, the leading WordPress freelancer platform. Simply fill out a form for a direct response. Enjoy vetted experts, timely delivery, fixed pricing, and a 28-day bug fix warranty. Experience hassle-free support and quality service tailored to your needs! --- - Published: 2020-08-15 - Modified: 2025-04-29 - URL: https://kb.mailster.co/sending-post-purchase-coupon-codes-to-woocommerce-customers/ - Categories: WooCommerce - Tags: autoresponder, coupon, woocommerce Easily offer discounts to customers after purchases with Mailster and WooCommerce. Set up a customer journey that includes sending a follow-up email with a coupon code after 24 hours. Create dedicated lists, landing pages, and autoresponders for seamless engagement, ensuring a smooth discount process. --- - Published: 2020-06-22 - Modified: 2025-05-21 - URL: https://kb.mailster.co/send-your-newsletters-via-gmail/ - Categories: Integrations - Tags: gmail, google Gmail is a popular email provider, but it's not ideal for marketing due to strict limits and potential spam issues. For effective newsletter campaigns with Mailster, consider alternatives. Integrate Gmail through the Mailster plugin by setting up a Google web app and OAuth credentials to ensure smooth delivery. --- - Published: 2020-01-24 - Modified: 2025-04-20 - URL: https://kb.mailster.co/the-mailster-cookie/ - Categories: Advanced - Tags: cookie Mailster sets a cookie named "mailster" when a subscriber clicks a campaign link, allowing user identification even without an account or login. This cookie expires one hour after the last click but can be extended. It’s generated using PHP's setcookie method, not JavaScript. --- - Published: 2019-09-24 - Modified: 2025-04-20 - URL: https://kb.mailster.co/grace-period/ - Categories: Advanced - Tags: autoresponder Mailster allows multiple autoresponders to automate campaigns, utilizing a default one-week "Grace Period" to prevent accidental sends. Users can easily adjust this period to one month or disable it entirely through simple filters, ensuring targeted communication with subscribers. --- - Published: 2019-09-09 - Modified: 2025-04-29 - URL: https://kb.mailster.co/list-based-and-global-subscriptions/ - Categories: _, Settings - Tags: status, subscriptions Mailster offers two subscription models: list-based (recommended for flexibility) and global subscriptions. Subscribers can unsubscribe from individual lists or all at once. Only those with a "subscribed" status receive campaigns, ensuring tailored communication based on user preferences. Adjust subscription types easily in the settings. --- - Published: 2019-09-01 - Modified: 2025-05-21 - URL: https://kb.mailster.co/encode-tags-in-links/ - Categories: Advanced - Tags: tags When using Mailster tags in links, remember to encode them with PHP's rawurlencode. Prepend an exclamation mark (!) to the tag name (e.g., {!mytag}) for proper encoding. Avoid this method for tags containing full links to ensure functionality. --- - Published: 2019-05-22 - Modified: 2025-04-20 - URL: https://kb.mailster.co/random-dynamic-posts/ - Categories: Advanced - Tags: random, tags Mailster's random posts feature complements dynamic posts by displaying a random post under the same conditions. Using tags like {post_title:~7}, you can ensure consistency within campaigns. Each random tag is linked to a unique seed, allowing for varied post displays without duplication within the same campaign. --- - Published: 2019-05-22 - Modified: 2025-04-29 - URL: https://kb.mailster.co/rss-email-campaigns/ - Categories: Legacy - Tags: autoresponder, campaigns, legacy, rss Mailster allows you to automate recurring autoresponders using RSS Feeds, ideal for integrating external content. For content from your own site, use dynamic tags. You can dynamically populate email subject lines with RSS titles, ensuring your campaigns are timely and relevant with each new feed item. --- - Published: 2019-05-22 - Modified: 2025-05-21 - URL: https://kb.mailster.co/dynamic-custom-post-types/ - Categories: Advanced - Tags: post types, tags Mailster's dynamic tag engine allows you to create custom post types that generate content on demand, enabling endless possibilities for newsletter personalization. You can display various content like popular posts or cart items using dynamic tags, enhancing user engagement in your campaigns. --- - Published: 2019-05-11 - Modified: 2025-04-21 - URL: https://kb.mailster.co/wordpress-displays-a-404-error-after-updating-the-campaign/ - Categories: Troubleshoot - Tags: 404 If your WordPress site redirects to /wp-admin/post.php, it may be due to misconfigured mod_security settings. This often stems from specific tags. To resolve the issue, contact your host, disable the module, or adjust the .htaccess file. Restart Apache after making changes for them to take effect. --- - Published: 2019-04-12 - Modified: 2025-04-20 - URL: https://kb.mailster.co/unsplash/ - Categories: _ - Tags: picpicker, unsplash With Mailster, access over 1,000,000 free photos through Unsplash directly in the editor. Easily add images to your email campaigns by using the pic-picker. While crediting photographers is optional, it's recommended to include their names in the alt text for best practices. --- - Published: 2019-03-19 - Modified: 2025-04-21 - URL: https://kb.mailster.co/usage-tracking/ - Categories: Legacy - Tags: legacy With Mailster 4.0, usage tracking is optional during installation or updates. Opting in helps us improve features and fix bugs. Data collected includes site details and Mailster settings, but we never share this information. You can enable or disable tracking anytime in the settings. --- - Published: 2019-02-26 - Modified: 2025-04-29 - URL: https://kb.mailster.co/why-do-my-emails-end-up-in-the-gmail-promotions-tab/ - Categories: Troubleshoot - Tags: gmail To improve the chances of your Mailster campaigns landing in Gmail's Primary Inbox, minimize images, favor plain text, limit external links, personalize sender names, and avoid excessive social links. Remember, content type and user preferences ultimately determine where emails are placed. --- - Published: 2019-02-25 - Modified: 2025-05-21 - URL: https://kb.mailster.co/permalink-structure/ - Categories: _ - Tags: links, permalinks Mailster utilizes custom rewrite rules for user navigation and link processing on the newsletter homepage. Issues with links may arise if Permalinks are not configured. To enhance URL appearance, visit Settings > Permalink and click "Save Changes" to refresh the permalink structure. For detailed guidance, refer to the official documentation. --- - Published: 2019-02-12 - Modified: 2025-04-20 - URL: https://kb.mailster.co/working-with-animated-gifs-in-mailster/ - Categories: _ - Tags: gif Animated GIFs can enhance your email marketing, but Mailster's default image resizing may lose animation. To preserve it, use Mailster's built-in option to insert the original image instead. This ensures your GIFs maintain their lively appeal in your campaigns. --- - Published: 2018-11-27 - Modified: 2025-04-21 - URL: https://kb.mailster.co/handling-bounces-with-amazonsns/ - Categories: Integrations - Tags: amazonses To manage bounces more effectively with Amazon SES in Mailster, switch to Amazon SNS for enhanced control. Set up SNS notifications by creating topics for bounce and complaint feedback. After configuring subscriptions, your Mailster installation will automatically track bounces and complaints from subsequent campaigns. --- - Published: 2018-10-30 - Modified: 2025-04-29 - URL: https://kb.mailster.co/how-many-subscribers-can-mailster-handle/ - Categories: Deliverability - Tags: performance, subscribers Mailster offers unlimited subscribers, lists, forms, and campaigns, but server limits may affect performance. To optimize, maintain fewer subscribers, simplify custom fields, and reduce autoresponder complexity. For best results, use PHP 7.4+, at least 128MB memory, and consider a dedicated server or VPS. --- - Published: 2018-10-10 - Modified: 2025-04-21 - URL: https://kb.mailster.co/send-your-newsletters-via-sendgrid/ - Categories: Integrations - Tags: sendgrid, smtp Integrate SendGrid with Mailster by signing up, creating an API key with specific permissions, and authenticating your sender. Choose between Domain Authentication or Single Sender Verification. Finally, test your setup by sending a test message through Mailster to ensure everything functions correctly. --- - Published: 2018-10-01 - Modified: 2025-04-29 - URL: https://kb.mailster.co/how-to-migrate-mailster-to-a-new-site/ - Categories: Account & Licenses - Tags: export, import To transfer Mailster from one site to another, back up both databases, optionally export data, and copy the Mailster tables to the new site. Export campaigns and settings from the original site, deactivate the license, install Mailster on the new site, and then import the campaigns and settings. --- - Published: 2018-09-12 - Modified: 2025-04-29 - URL: https://kb.mailster.co/user-ratings/ - Categories: Privacy - Tags: rating, subscribers Mailster's user ratings reflect subscriber engagement, updated with each interaction—opens and clicks boost ratings, while bounces and unsubscribes lower them. Ratings, ranging from 10% to 100%, prioritize sending campaigns to higher-rated subscribers. You can also segment lists based on ratings and customize them programmatically. --- - Published: 2018-06-04 - Modified: 2025-04-21 - URL: https://kb.mailster.co/adding-content-to-your-forms/ - Categories: Legacy - Tags: form, forms, legacy This article outlines how to customize Legacy Forms using Mailster. You can enhance forms with additional content by employing the mailster_form filter hook. Target specific forms like Unsubscribe or Profile with dedicated hooks. Explore more about integrating custom code and maximizing form functionality on your site. --- - Published: 2018-04-23 - Modified: 2025-04-21 - URL: https://kb.mailster.co/disabling-the-inline-editor/ - Categories: Legacy - Tags: editor, legacy This article is outdated for the latest Mailster version. The Inline Editor enhances campaign creation efficiency. To revert to the old editor, simply use the code: `add_filter('mailster_inline_editor', '__return_false');`. For more on adding custom code, check the provided link. --- - Published: 2018-04-04 - Modified: 2025-04-20 - URL: https://kb.mailster.co/subscriber-query/ - Categories: Advanced - Tags: query, segmentation Mailster simplifies subscriber segmentation with its Subscriber Query feature, allowing custom coding for tailored results. Users can query subscribers based on various parameters, including conditions, fields, and search terms, enabling precise targeting and management of subscriber lists efficiently. --- - Published: 2018-04-03 - Modified: 2025-04-20 - URL: https://kb.mailster.co/using-multi-language-newsletter-with-wpml/ - Categories: _ - Tags: wpml With Mailster and the WPML plugin, you can effortlessly create multi-language email campaigns. Set up forms and translate settings for each language, then design tailored newsletters. Create campaigns for each language, applying specific conditions to target users effectively. Enhance your reach with localized communication! --- - Published: 2018-04-02 - Modified: 2025-04-20 - URL: https://kb.mailster.co/security-nonce-is-invalid/ - Categories: Troubleshoot - Tags: form, nonce Mailster forms use WordPress Nonces to prevent invalid submissions, but these can expire after 24 hours, often due to caching. If you encounter an error, consider disabling caching on pages with Mailster forms via the Advanced Settings. Alternatively, adjust nonce settings for internal forms to ensure functionality. --- - Published: 2018-03-28 - Modified: 2025-05-21 - URL: https://kb.mailster.co/gdpr/ - Categories: Privacy - Tags: gdpr The GDPR, effective May 25, 2018, mandates key principles for data protection, including obtaining consent, the right to access, the right to be forgotten, and breach notification. Mailster supports compliance, but additional measures may be needed. Consult a lawyer for tailored guidance on GDPR regulations. --- - Published: 2018-03-04 - Modified: 2025-04-20 - URL: https://kb.mailster.co/mail-headers-in-mailster/ - Categories: Advanced - Tags: header Mailster sends emails as multi-part MIME messages with headers that identify the sender and campaign. Key headers include version numbers, unique hashes for subscribers, and unsubscribe links, essential for compliance with email providers. Custom headers can also be added for personalization, enhancing user engagement. --- - Published: 2017-11-09 - Modified: 2025-04-29 - URL: https://kb.mailster.co/adding-posts-to-your-campaign/ - Categories: Getting Started - Tags: campaigns, content, post types, tags Mailster offers seamless integration with WordPress, allowing users to easily add posts, pages, or custom post types to campaigns. You can include static content, which remains unchanged, or dynamic content that updates upon sending. Customize your campaigns with filters for tailored content display. --- - Published: 2017-09-28 - Modified: 2025-05-21 - URL: https://kb.mailster.co/wordpress-users-in-mailster/ - Categories: Getting Started - Tags: subscribers, users, WordPress users Mailster allows seamless integration of WordPress users into your subscriber list. It offers automatic linking for matching emails, user import options, and settings to add new subscribers from registrations and comments. Keep user data synchronized by defining connection fields for updates, ensuring efficient segmentation and engagement. --- - Published: 2017-09-15 - Modified: 2025-10-06 - URL: https://kb.mailster.co/send-your-newsletters-via-mailgun/ - Categories: Integrations - Tags: mailgun Mailgun is a developer-friendly email provider that integrates seamlessly with Mailster for campaign sending. To get started, sign up, add your domain, and configure DNS entries. Download the Mailgun add-on for Mailster, enter your API key, and choose between the WEB API or SMTP for sending. --- - Published: 2017-08-14 - Modified: 2025-04-20 - URL: https://kb.mailster.co/validating-custom-fields/ - Categories: Advanced, Forms - Tags: custom fields Mailster allows you to create custom fields for subscriber information, such as a birthday field. By adding custom code, you can verify that subscribers are over 18, preventing those underage from signing up. The code checks the provided birthdate and displays an error message if the user is younger than 18. --- - Published: 2017-08-08 - Modified: 2025-05-21 - URL: https://kb.mailster.co/send-your-newsletters-via-sparkpost/ - Categories: Integrations - Tags: smtp, sparkpost SparkPost is a reliable email delivery service that requires setup, including domain verification and API key creation. While it no longer offers a free tier, a "Test Account" can be used for evaluation. Users must configure DNS settings and integrate with Mailster to start sending emails effectively. --- - Published: 2017-08-03 - Modified: 2025-04-20 - URL: https://kb.mailster.co/using-woocommerce-in-your-newsletter-campaigns/ - Categories: WooCommerce - Tags: woocommerce Enhance your WooCommerce shop's outreach with Mailster's WooCommerce add-on. Effortlessly send auto-responder campaigns featuring your latest products. Utilize dynamic content, customizable metadata, and formatting options to present prices attractively. Streamline your marketing by integrating WooCommerce products directly into your email campaigns. --- - Published: 2017-07-30 - Modified: 2025-04-20 - URL: https://kb.mailster.co/get-the-current-subscriber/ - Categories: Advanced - Tags: functions.php Mailster provides methods to retrieve the current subscriber information and their ID. It sets a cookie with the subscriber's hash upon link clicks, expiring in 60 minutes. You can extend this expiration to three hours using a simple filter. --- - Published: 2017-07-27 - Modified: 2025-04-20 - URL: https://kb.mailster.co/where-are-the-module-screenshots/ - Categories: Troubleshoot - Tags: module, screenshots Mailster generates template screenshots on our server, but issues may arise. Thumbnails may not appear due to uncreated images, server restrictions, disabled options, broken HTML, or outdated versions. Ensure your server can connect, check settings, and update Mailster. You can also delete thumbnails to regenerate them. --- - Published: 2017-07-23 - Modified: 2025-04-20 - URL: https://kb.mailster.co/why-does-the-post_image-tag-not-work/ - Categories: Troubleshoot - Tags: editbar The {post_image:X} tag in Mailster allows you to use a post's featured image within your email campaigns. Unlike other tags, it must be placed within an tag. You can easily edit and insert images using the image picker, which provides automatic size adjustments. --- - Published: 2017-06-26 - Modified: 2025-04-20 - URL: https://kb.mailster.co/how-to-redirect-after-form-submission/ - Categories: Forms, Getting Started - Tags: form, forms Mailster forms use AJAX for seamless submissions, providing users with confirmation messages. Users can redirect submissions to specific pages via form settings. Two redirection options are available: after submission (regardless of double-opt-in) and after confirmation (for double-opt-in users), allowing tailored user experiences. --- - Published: 2017-06-13 - Modified: 2025-04-20 - URL: https://kb.mailster.co/keep-certain-tags-in-your-campaigns/ - Categories: Advanced - Tags: tags Mailster automatically removes unused tags from your campaign, but you can whitelist specific ones using the 'mailster_keep_tags' filter. Add your desired tags, like {my-special-tag} and {my-other-tag}, to ensure they remain in your campaign with variations. --- - Published: 2017-06-02 - Modified: 2025-05-21 - URL: https://kb.mailster.co/using-mailster-forms/ - Categories: Legacy - Tags: form, legacy Mailster offers versatile sign-up forms for various platforms, including WordPress and plain HTML. You can embed forms using shortcodes, a customizable Subscriber Button, or raw HTML. This article focuses on Legacy Forms, but be sure to explore the new block-based forms for enhanced features. --- - Published: 2017-06-01 - Modified: 2025-04-20 - URL: https://kb.mailster.co/saving-new-template-files/ - Categories: Advanced, Customization, Getting Started - Tags: template Mailster Templates kickstart your campaigns by allowing customization. Choose a template, start a new campaign, and add desired modules. Save your customizations as a new template or overwrite an existing one. You can also adjust headers, footers, and notifications, enhancing your campaign's uniqueness and functionality. --- - Published: 2017-05-28 - Modified: 2025-04-21 - URL: https://kb.mailster.co/adding-a-terms-of-service-checkbox-to-your-forms/ - Categories: Legacy - Tags: gdpr, legacy, legal This article emphasizes the importance of compliance with email marketing laws using Mailster. It enables users to add a mandatory confirmation checkbox to sign-up forms, ensuring GDPR compliance. Users can customize error messages and link to terms of service, enhancing legal adherence in various countries. --- - Published: 2017-05-24 - Modified: 2025-04-20 - URL: https://kb.mailster.co/changing-the-static-auto-tag-output/ - Categories: Advanced - Tags: auto tag, tags Mailster's auto feature allows you to manage static content by modifying the functions.php file. You can customize the output using the "mailster_auto_post" filter, adjusting the title, content, and other parameters. The default data includes title, excerpt, and link, allowing for flexible email automation. --- - Published: 2017-05-24 - Modified: 2025-04-29 - URL: https://kb.mailster.co/moving-subscribers-to-different-lists/ - Categories: _ - Tags: lists, subscribers Easily manage subscriber lists in Mailster with simple UI options or custom code. You can assign or unassign subscribers based on actions like clicking a link or opening a campaign, using functions like `assign_lists` and `unassign_lists`. Tailor subscriber movements to enhance engagement effectively. --- - Published: 2017-05-20 - Modified: 2025-04-23 - URL: https://kb.mailster.co/adding-a-date-picker-to-your-forms/ - Categories: Legacy - Tags: datepicker, form, legacy, na For legacy forms, you can enhance date fields by adding a date picker using a simple code snippet. This allows for better subscriber engagement, such as in birthday campaigns. Customize the appearance by selecting different themes from the jQuery UI homepage to align with your website's design. --- - Published: 2017-05-20 - Modified: 2025-04-23 - URL: https://kb.mailster.co/adding-custom-code-to-your-website/ - Categories: Advanced, Customization - Tags: functions.php, third party plugin To extend your WordPress site's functionality, you can add custom code in two ways: the theme's functions.php file, which is theme-specific, or by creating a dedicated plugin for use across multiple themes. Both methods offer similar performance, but plugins allow easier management. --- - Published: 2017-04-27 - Modified: 2025-04-21 - URL: https://kb.mailster.co/mails-are-send-but-not-delivered/ - Categories: Deliverability, Troubleshoot - Tags: sendmail, smtp Mailster's email delivery relies on your sending server's response, but a "success" message doesn't guarantee inbox delivery. Emails may end up in spam, bounce back, or face delays. Use Mailster's Email Health Check to assess deliverability and consider changing delivery methods or servers if issues persist. --- - Published: 2017-04-27 - Modified: 2025-04-20 - URL: https://kb.mailster.co/how-to-remove-visual-composer-shortcodes-in-campaigns/ - Categories: Advanced - Tags: shortcodes, visual composer If you're using Visual Composer in WordPress and encountering shortcode issues with Mailster, you can remove them by adding custom snippets to your theme’s functions.php. This ensures that the content remains intact while filtering out undesired shortcodes. Adjust the snippets accordingly for custom post types or other page builders. --- - Published: 2017-03-28 - Modified: 2025-04-29 - URL: https://kb.mailster.co/setup-automatic-bounce-handling/ - Categories: _, Settings - Tags: bounce Mailster automates bounce processing with proper setup. Assign a dedicated bounce address, enter server credentials, and define bounce check options. Soft bounces are retried while hard bounces result in immediate subscriber removal. Regularly test your settings to ensure functionality and maintain a clear postbox. --- - Published: 2017-03-20 - Modified: 2025-04-20 - URL: https://kb.mailster.co/mailster-and-woocommerce/ - Categories: WooCommerce - Tags: woocommerce Enhance your WooCommerce shop with a free WordPress add-on to convert customers into newsletter subscribers. Automate email workflows based on product purchases, customize subscriber lists, and manage signup options. Ensure compliance with legal requirements by utilizing the Double-Opt-In feature for user confirmations. --- - Published: 2017-03-19 - Modified: 2025-04-20 - URL: https://kb.mailster.co/access-to-admin-ajax-php-is-blocked/ - Categories: Troubleshoot - Tags: ajax The admin-ajax.php file is crucial for Mailster's backend functions. If it's blocked, issues may arise from plugin conflicts, host firewalls, .htaccess rules, or cross-domain mismatches. To resolve Ajax problems, check and adjust these elements or deactivate conflicting plugins. --- - Published: 2017-03-18 - Modified: 2025-04-20 - URL: https://kb.mailster.co/changing-text-snippets/ - Categories: Advanced, Customization - Tags: text Mailster lets you customize internal text snippets easily. You can adjust them in the Text tab or use the `mailster_text` filter for more flexibility. Key snippets include confirmation messages, success notifications, and error alerts. Just add a filter to change specific texts programmatically! --- - Published: 2017-03-18 - Modified: 2025-04-20 - URL: https://kb.mailster.co/add-custom-dynamic-tags-to-your-newsletter/ - Categories: Advanced, Customization - Tags: tags Enhance your newsletters with dynamic content using custom tags. By adding code snippets to your theme's functions.php, you can create unique tags like {mytag} or {coupon} for personalized content, such as coupon codes, tailored to each subscriber. This ensures engaging and relevant communication. --- - Published: 2017-03-13 - Modified: 2025-04-20 - URL: https://kb.mailster.co/sending-plain-text-emails/ - Categories: _ - Tags: plain text To send plain text-like emails in Mailster, create a new campaign, switch to code view, delete the existing HTML, and enter your text. This keeps the advantages of HTML while allowing for easy editing. Your emails will appear plain text but function as HTML for better compatibility. --- - Published: 2017-02-02 - Modified: 2025-04-20 - URL: https://kb.mailster.co/how-to-add-a-google-maps-api-key/ - Categories: _ - Tags: google, maps Mailster integrates Google Maps to visualize subscriber locations. To set it up, create a Google API Key by enabling the Google Maps Platform and selecting a project. Secure your API key with HTTP referrers for your domain, and remember to add any email service domains for notifications. --- - Published: 2017-01-12 - Modified: 2025-05-21 - URL: https://kb.mailster.co/mailster-for-developers/ - Categories: Customization Mailster is built for developers, featuring hooks and filters for customization. You can add subscribers easily, manage lists, and even unsubscribe users with simple functions. Use the Mailster Closure to ensure your code runs smoothly, only if Mailster is active. Get started with seamless integration today! --- - Published: 2017-01-12 - Modified: 2025-04-29 - URL: https://kb.mailster.co/add-subscribers/ - Categories: Getting Started - Tags: subscribers Easily manage subscribers in Mailster using simple code. Add a single email or detailed subscriber info, update existing subscribers, assign them to lists, or remove them effortlessly. Each action returns relevant IDs or status, facilitating efficient email list management. Explore more for developer insights. --- - Published: 2016-12-28 - Modified: 2025-04-29 - URL: https://kb.mailster.co/tags-in-mailster/ - Categories: Getting Started, Settings - Tags: tags Tags in Mailster serve as placeholders in your campaigns, dynamically replaced with subscriber-specific content during sending. Use the format {tagname} for tags, and set alternative content with {tagname|alternative}. Dynamic tags allow for customized content display, enhancing engagement in newsletters. Explore more in the "Tags" Tab on the Settings page! --- - Published: 2016-12-28 - Modified: 2025-04-29 - URL: https://kb.mailster.co/how-to-install-mailster/ - Categories: Getting Started - Tags: install, na To install Mailster, go to the Plugins page, click "Add New," then "Upload Plugin." Select the mailster-x.x.x-zip file from your desktop and click "Install Now." After installation, activate the plugin to access the Setup Wizard for customization. --- - Published: 2016-12-28 - Modified: 2025-10-23 - URL: https://kb.mailster.co/your-first-campaign/ - Categories: Getting Started - Tags: campaigns, editor, optionbar Activate the plugin and create your first campaign via the "New Campaign" option in the "Newsletter" menu. Customize your campaign's title, sender details, and content using various modules. Adjust colors, enable tracking, and define your audience in the Receivers Meta Box for targeted delivery. --- - Published: 2016-12-22 - Modified: 2025-04-20 - URL: https://kb.mailster.co/updating-mymail-to-mailster/ - Categories: _ We're excited to enhance your experience with Mailster by launching a new support and license center. This upgrade allows you to manage licenses and track support tickets efficiently. Enjoy a free update, with improved features and functionality on the horizon. Remember to back up your data before updating! --- - Published: 2016-07-31 - Modified: 2025-04-20 - URL: https://kb.mailster.co/working-with-action-hook-auto-responders/ - Categories: _ - Post series: Auto responder In this fourth part of our Mailster autoresponder series, we explore Action Hook Auto Responders. These advanced tools require WordPress coding knowledge and are triggered by specific actions. Learn to customize campaigns, define delivery options, and segment receivers for targeted email marketing. --- - Published: 2016-07-19 - Modified: 2025-04-20 - URL: https://kb.mailster.co/what-is-a-cron-lock/ - Categories: Cron, Troubleshoot - Tags: cron, cronjob Mailster prevents duplicate emails by creating a cron lock during campaign processing. If a lock is active, you'll see a notification when accessing the cron URL. Locks are released automatically after processing, but may require manual release if a timeout or error occurs. Adjust email volume if you frequently encounter locks. --- - Published: 2016-07-13 - Modified: 2025-04-20 - URL: https://kb.mailster.co/how-to-alter-the-buttons-in-the-text-editor/ - Categories: Advanced - Tags: editor Customize your email campaigns using a rich text editor by adding buttons for formatting, font selection, and size. To enhance your editor, insert a snippet in your theme's functions.php. Note that email appearance may vary with custom styles, and three toolbar areas are available for modifications. --- - Published: 2016-06-22 - Modified: 2025-05-21 - URL: https://kb.mailster.co/post-thumbnail-oembed-and-open-graph/ - Categories: Advanced Enhance your newsletter campaigns with featured images directly from the editor, just like regular posts. Utilize Mailster's screenshot feature or embed content from platforms like Twitter and YouTube. Plus, take advantage of Open Graph for better social media sharing, making your newsletters visually appealing across platforms. --- - Published: 2016-06-13 - Modified: 2025-04-29 - URL: https://kb.mailster.co/subscriber-notification-options/ - Categories: _, Settings - Tags: subscriptions Manage your subscriber notifications effectively! Enable a summary email for your seven most recent fans, complete with location maps and user destinations. Adjust delivery times in the newsletter settings, or customize them with code to receive updates midday. Choose your preferred notification method for optimal convenience. --- - Published: 2016-06-03 - Modified: 2025-05-21 - URL: https://kb.mailster.co/send-your-newsletters-via-amazons-ses/ - Categories: Integrations - Tags: amazonses To effectively send newsletters, use a dedicated email service like Amazon SES. Install the Mailster plugin, set up your AWS account, verify your domain, and create an identity. Enable DKIM for better deliverability, update your DNS settings, and configure IAM users for secure access. --- - Published: 2016-06-01 - Modified: 2025-04-20 - URL: https://kb.mailster.co/changing-the-dynamic-auto-tag-output/ - Categories: Advanced - Tags: auto tag, tags Enhance your Mailster campaigns by customizing dynamic post content through your theme's functions.php file. Use a simple function to link post titles and include author names in excerpts. Target multiple elements for more tailored content, ensuring your edit bar reflects these changes. --- - Published: 2016-05-31 - Modified: 2025-04-20 - URL: https://kb.mailster.co/smtp-error-data-not-accepted/ - Categories: Troubleshoot - Tags: delivery, smtp SMTP errors can arise from various issues: mismatched sender and username, oversized messages, blacklisted receivers, or temporary server limits. To resolve, ensure your From address matches your login, reduce message size, and consider pausing campaigns. For Amazon SES, verify all email addresses used in your mailings. --- - Published: 2016-05-30 - Modified: 2025-05-21 - URL: https://kb.mailster.co/why-does-support-expire/ - Categories: Account & Licenses - Tags: support Since September 2015, Envato offers 6 months of included support for purchases. Support can be renewed on the item page, but expired support does not guarantee a response for tickets submitted post-June 2016. Users can reply to tickets for 14 days after expiration; new tickets require active licenses. --- - Published: 2016-02-29 - Modified: 2025-04-20 - URL: https://kb.mailster.co/translations-in-mailster/ - Categories: _ - Tags: translation Mailster is a globally used tool with varying language support. To enhance localization, users can participate in the Translation Project, fixing translations via translate.mailster.co. For custom translations, download and edit files in the wp-content/languages/plugins folder, then upload them for Mailster to use. --- - Published: 2016-02-08 - Modified: 2025-04-20 - URL: https://kb.mailster.co/creating-a-series-in-mailster/ - Categories: _ - Tags: autoresponder - Post series: Auto responder This article recommends using Automation for creating engaging newsletter series in Mailster, known as drip campaigns. It outlines steps to set up a series, starting with a Welcome Campaign, followed by subsequent campaigns triggered by specific conditions and time delays. Adjust your audience lists accordingly for effective delivery. --- - Published: 2015-12-14 - Modified: 2025-04-20 - URL: https://kb.mailster.co/troubleshooting-wordpress-in-60-seconds/ - Categories: Troubleshoot Mailster adheres to WordPress Coding Standards, ensuring compatibility with compliant plugins and themes. If issues arise, test on the demo site first. Clear your cache, check for plugin conflicts, use the Health Check plugin, switch themes, and enable debugging to diagnose problems. Seek support if needed. --- - Published: 2015-12-04 - Modified: 2025-05-21 - URL: https://kb.mailster.co/why-is-my-wordpress-version-no-longer-supported/ - Categories: Troubleshoot WordPress updates introduce new features and bug fixes. While plugins that worked previously will likely continue to function, unsupported versions may encounter errors. It's essential to keep your site and plugins updated to avoid security vulnerabilities. --- - Published: 2015-10-30 - Modified: 2025-05-21 - URL: https://kb.mailster.co/working-with-action-based-autoresponders/ - Categories: _ - Post series: Auto responder, legacy Explore action-based autoresponders designed to launch campaigns after new content is published. Set up a campaign, define subject lines, and utilize dynamic tags for personalized content. Adjust delivery options, including timing and segmentation by categories, to effectively engage subscribers. Next, we'll delve into time-based autoresponders. --- - Published: 2015-10-30 - Modified: 2025-05-21 - URL: https://kb.mailster.co/what-is-dkim-domainkeys-identified-mail/ - Categories: Deliverability - Tags: dkim DKIM (DomainKeys Identified Mail) links a domain to an email, ensuring authenticity. To enable DKIM, add a TXT record with your public key. Email programs sign messages with a private key, allowing receivers to verify authenticity. Proper setup shows a green indicator, while updates may take up to 48 hours. --- - Published: 2015-10-30 - Modified: 2025-04-20 - URL: https://kb.mailster.co/use-fullname-instead-of-first-and-lastname/ - Categories: Advanced - Tags: tags For personalized newsletters, replace the {firstname} and {lastname} tags with {fullname} for a cleaner greeting, like "Hello John!" Instead of "Hello John!" with awkward spacing, you can also use a fallback like "Hello {fullname|my friend}!" to ensure every message feels personal. --- - Published: 2015-10-30 - Modified: 2025-04-20 - URL: https://kb.mailster.co/working-with-subscriber-based-autoresponders/ - Categories: _ - Post series: Auto responder Subscriber auto-responders send automated messages based on user actions like subscription or unsubscription. You can craft personalized welcome emails using tags like {firstname} and {coupon_code}. Set delivery options and enable autoresponder settings to engage new subscribers effectively. Next, we'll explore action-based autoresponders. --- - Published: 2015-10-30 - Modified: 2025-04-20 - URL: https://kb.mailster.co/working-with-time-based-auto-responders/ - Categories: _ - Post series: Auto responder Time-based autoresponders send campaigns at specific intervals, like monthly updates of your latest posts. Set up a campaign by defining its subject, content, and delivery options. Utilize dynamic tags for personalization and configure scheduling preferences, including start and end dates, to optimize engagement with your subscribers. --- - Published: 2015-10-30 - Modified: 2025-04-29 - URL: https://kb.mailster.co/get-a-notification-on-new-subscribers/ - Categories: Getting Started - Tags: subscribers Easily receive notifications for new subscribers by enabling the option in the Subscribers tab of your settings. You can also select a different custom template from the drop-down menu if you have template files in your current directory. --- - Published: 2015-10-30 - Modified: 2025-05-21 - URL: https://kb.mailster.co/track-your-clicks-with-google-analytics/ - Categories: Privacy Mailster offers detailed insights into subscriber behavior, including clicks, opens, and unsubscriptions. Easily track your newsletter campaigns alongside website visitors using Google Analytics or Piwik with our two free add-ons. Activate the extensions to customize campaign parameters and enhance your analytics experience. --- - Published: 2015-10-30 - Modified: 2025-04-20 - URL: https://kb.mailster.co/segmentation-in-mailster/ - Categories: Getting Started - Tags: conditions, segmentation Segmenting your audience allows for precise targeting in your marketing campaigns. Mailster enables you to create recipient lists and set specific conditions based on subscriber metadata, optimizing engagement. Choose criteria like email domain or user role to effectively reach your desired audience and enhance campaign performance. --- - Published: 2015-10-30 - Modified: 2025-05-21 - URL: https://kb.mailster.co/add-a-list-of-your-latest-post-in-your-campaign/ - Categories: Advanced - Tags: tags Engage your audience by linking to older blog articles, utilizing dynamic tags for a seamless experience. Enhance visibility with structured HTML, including post titles and dates, to keep content organized and appealing. Encourage exploration of your blog's archives to maintain reader interest. --- - Published: 2015-10-30 - Modified: 2025-04-29 - URL: https://kb.mailster.co/build-an-archive-of-your-latest-newsletters/ - Categories: Customization - Tags: frontend Easily display your latest campaigns chronologically by enabling the option in Settings. Remember to update permalinks if necessary and flush rewrite rules. You can also list newsletters using the shortcode , with customizable attributes for date, count, status, order, and orderby. --- - Published: 2015-10-30 - Modified: 2025-04-21 - URL: https://kb.mailster.co/setup-your-birthday-campaign-with-autoresponders/ - Categories: Legacy - Tags: autoresponder, legacy With Mailster, easily send birthday greetings to subscribers by adding a birthday custom field. Create a campaign, set it to trigger annually based on the subscriber's birthday, and schedule it to send at midday. Save your campaign, and you're all set to celebrate! --- - Published: 2015-10-30 - Modified: 2025-04-20 - URL: https://kb.mailster.co/subscriber-based-timezone-sending/ - Categories: _ Mailster allows you to send campaigns based on your subscribers' time zones, ensuring they receive emails at optimal times. Activate "Use subscribers' timezone" for timely delivery, but schedule campaigns at least 24 hours in advance. Note that Geo Tracking must be enabled to determine subscribers' locations. --- - Published: 2015-10-30 - Modified: 2025-04-29 - URL: https://kb.mailster.co/ignore-certain-posts-in-your-campaigns/ - Categories: Advanced - Tags: campaigns Mailster allows you to automatically send your latest posts to subscribers while easily excluding specific articles. By adding a custom field called "mailster_ignore" to a post, Mailster will ignore it in dynamic tags and autoresponder campaigns, ensuring tailored content delivery. --- - Published: 2015-10-10 - Modified: 2025-04-29 - URL: https://kb.mailster.co/how-to-add-salutation-to-your-subscribers/ - Categories: Advanced, Customization - Tags: subscribers, tags To personalize subscriber greetings, establish custom fields for gender and salutation. Use code snippets to automate salutations based on gender in your Mailster subscriber list. You can also apply these changes to existing users through bulk actions or by adding a custom dynamic tag for flexibility. --- - Published: 2015-07-08 - Modified: 2025-04-29 - URL: https://kb.mailster.co/how-can-subscribers-update-their-subscription/ - Categories: _ - Tags: form, profile, subscribers Enable subscribers to update their data by adding a {profile} tag in your newsletter campaigns. This redirects them to a secure subpage on your homepage where you can customize the editable fields. Ensure your newsletter homepage is properly set up for seamless access. --- - Published: 2015-06-24 - Modified: 2025-04-20 - URL: https://kb.mailster.co/why-does-tracking-not-work/ - Categories: Troubleshoot - Tags: permalinks, tracking If your campaign statistics show no opens or clicks, try sending a test campaign to check links, ensure Mailster isn’t blocked by firewalls, and verify there’s no conflicting “mailster” folder on your server. Remember, subscribers may just be busy, so give it some time. --- - Published: 2015-06-11 - Modified: 2025-05-21 - URL: https://kb.mailster.co/how-to-handle-bounces-with-sendgrid/ - Categories: Integrations - Tags: bounce, sendgrid To automatically manage bounces in Mailster using SendGrid, install the SendGrid Integration plugin. Choose SendGrid on the delivery tab to mark future bounces automatically. For Mailster, request SendGrid Support to enable the "preserve headers" option; otherwise, it will overwrite your return-path. Note that the WEB API is incompatible with Mailster's bounce handling. --- - Published: 2015-05-24 - Modified: 2025-04-20 - URL: https://kb.mailster.co/how-to-solve-database-errors/ - Categories: Troubleshoot - Tags: database, mysql, sql If you see an error about missing Mailster tables, visit your update page at https://yourdomain.com/wp-admin/admin.php?page=mailster_update (replace with your domain) to fix it. Alternatively, deactivate and reactivate the plugin to run a database check and create any missing campaigns. --- - Published: 2014-12-12 - Modified: 2025-04-20 - URL: https://kb.mailster.co/how-does-tracking-in-mailster-work/ - Categories: Privacy - Tags: tracking Mailster enables tracking of opens, clicks, unsubscribes, and bounces. It counts opens via a small image loaded from your server; however, some email clients block this image. Clicks are tracked as unique or total, with rates displayed for Click-Through Rate (CTR) and Adjusted Click-Through Rate (ACTR). --- - Published: 2014-12-11 - Modified: 2025-04-21 - URL: https://kb.mailster.co/how-can-i-increase-the-sending-speed/ - Categories: Deliverability, Troubleshoot - Tags: delivery To enhance Mailster's email delivery rates, consider reducing the cron interval, increasing the number of emails sent at once, or selecting a different delivery method. Remember, delivery speed averages 1-2 emails per second, and server capacity and connection quality can impact performance. --- - Published: 2014-12-11 - Modified: 2025-05-21 - URL: https://kb.mailster.co/choosing-your-delivery-method/ - Categories: Deliverability, Getting Started - Tags: delivery Mailster offers two default delivery methods: Simple SMTP and SMTP. Simple SMTP is not recommended for bulk mailing due to provider limits. For larger subscriber lists, use SMTP and check with your host for credentials. Additional methods like AmazonSES, SparkPost, Mailgun, SendGrid, and Gmail can be added via plugins. --- - Published: 2014-11-14 - Modified: 2025-04-20 - URL: https://kb.mailster.co/why-do-the-links-in-my-emails-not-work/ - Categories: Troubleshoot - Tags: links, permalinks If subscribers can't confirm their Mailster subscription or encounter broken links, ensure your permalink structure is set correctly (Settings => Permalink => Save) and verify your server supports redirects. These steps will help resolve issues like "404 - Page not found" errors in your campaigns. --- - Published: 2014-10-30 - Modified: 2025-05-21 - URL: https://kb.mailster.co/how-can-i-use-short-codes-in-mailster-campaigns/ - Categories: Advanced - Tags: short code, shortcodes Shortcodes are disabled by default in Mailster to prevent HTML injection that could disrupt emails. Users can enable them in advanced settings, but all registered shortcodes will be removed from the final email. To add custom shortcodes, use the appropriate filter function in the code. --- - Published: 2014-10-29 - Modified: 2025-04-21 - URL: https://kb.mailster.co/smtp-error-could-not-connect-to-smtp-host/ - Categories: Troubleshoot - Tags: delivery, error, smtp If you encounter an SMTP connection error, it’s likely due to your email service provider rejecting one of your email addresses. Ensure your "from," "reply-to," and "bounce" addresses match the authenticated SMTP email. Check DNS functionality and connectivity using commands like `dig` and `telnet`. If issues persist, contact your ISP for support. --- - Published: 2014-10-24 - Modified: 2025-05-21 - URL: https://kb.mailster.co/how-can-i-use-mailster-with-the-wp_mail-function/ - Categories: _ - Tags: delivery, wp_mail Mailster allows you to enhance email delivery by overriding the default wp_mail function. Choose from three settings: bypass Mailster, use it for all emails, or apply a template. Additionally, control how Mailster interacts with third-party content types, ensuring compatibility and effective email delivery. --- - Published: 2014-10-03 - Modified: 2025-04-21 - URL: https://kb.mailster.co/how-can-i-manually-upload-mailster-templates/ - Categories: Templates - Tags: template, upload Upload templates via FTP if the Templates section isn't suitable. Extract your downloaded archive and place the folder in "wp-content/uploads/mailster/templates" (note: "wp-content" may have a different name). Your template will be available under Newsletter > Templates, with images generated automatically. --- - Published: 2014-09-25 - Modified: 2025-04-20 - URL: https://kb.mailster.co/how-do-i-know-if-my-cron-is-working-correctly/ - Categories: Cron - Tags: cron Mailster requires a cron job to send campaigns. Check its status under Newsletter > Settings > Cron, where you can see the last trigger time and details. If the cron hasn’t run recently, verify your cron settings and ensure the secret hash hasn’t changed. --- - Published: 2014-09-10 - Modified: 2025-04-29 - URL: https://kb.mailster.co/why-do-some-of-my-subscribers-get-a-status-of-error/ - Categories: Troubleshoot - Tags: error, subscribers When sending campaigns, subscribers may be marked as errors due to invalid email addresses, non-existent domains, or server rejections. While these errors are often subscriber-based, Mailster may misclassify some as campaign-based. Common server rejections include reaching sending limits or blacklisted emails. For specifics, consult your email provider. --- - Published: 2014-09-09 - Modified: 2025-04-20 - URL: https://kb.mailster.co/how-colors-work-with-the-mailster-editor/ - Categories: Advanced - Tags: color, editor Colors in the Mailster Editor are determined by the template's HTML and only recognize 6-digit hex codes (e.g., #FFFFFF). Short hex codes are ignored. When merging colors, use slightly different shades to ensure Mailster can distinguish between them, preventing unintended uniformity. --- - Published: 2014-09-04 - Modified: 2025-04-20 - URL: https://kb.mailster.co/why-does-the-unsubscribe-link-not-work/ - Categories: Troubleshoot - Tags: links, permalinks Occasionally, unsubscribe links in campaigns may lead to a "404 - Not Found" error. To resolve this, ensure Mailster is activated, permalinks are correctly set, and your server can handle redirects. If issues persist, consult your hosting provider for assistance. --- - Published: 2014-05-14 - Modified: 2025-04-21 - URL: https://kb.mailster.co/how-can-i-send-newsletters-via-godaddy/ - Categories: Integrations - Tags: godaddy, smtp Using GoDaddy's email servers is possible but comes with restrictions. Limit your SMTP sends to 500 emails per account, ensure your from and reply-to addresses match your domain, and configure settings with the specified server details. Be mindful of additional limitations that may apply. --- - Published: 2014-04-04 - Modified: 2025-04-21 - URL: https://kb.mailster.co/how-can-i-add-a-captcha-to-the-sign-up-form/ - Categories: Forms - Tags: captcha, form Discover two free plugins for enhanced form security: Mailster Cool Captcha and Mailster reCaptcha™. Both are available on the WordPress Plugin repository, ensuring your forms are protected from spam. --- - Published: 2014-01-15 - Modified: 2025-04-21 - URL: https://kb.mailster.co/how-can-i-setup-the-newsletter-homepage-legacy/ - Categories: Legacy - Tags: frontend, homepage, legacy Mailster requires a static newsletter homepage for subscription management. This page, accessible at http://yourdomain.tld/newsletter-signup, utilizes essential shortcodes for signups, confirmations, and unsubscriptions. Customize your content within the shortcodes, and remember to link it in your settings. Subpages for unsubscribe and profile are also available. --- - Published: 2013-12-11 - Modified: 2025-04-21 - URL: https://kb.mailster.co/smtp-error-could-not-authenticate/ - Categories: Troubleshoot - Tags: delivery, smtp Campaigns may pause or fail to send emails due to SMTP authentication errors, incorrect credentials, or blocked ports. Ensure you’re using the correct email for authentication, check your sending limits, and consider changing your delivery method. If issues persist, pause and resume your campaign later. --- - Published: 2013-12-09 - Modified: 2025-04-20 - URL: https://kb.mailster.co/can-i-add-attachments-to-my-newsletter/ - Categories: Getting Started - Tags: attachment Enhance your campaigns by adding attachments via the campaign edit screen, with a total size limit of 1MB (modifiable to 5MB using a filter hook). Be cautious, as large attachments may lead to delivery issues. Consider providing download links for subscribers instead. --- - Published: 2013-12-04 - Modified: 2025-04-20 - URL: https://kb.mailster.co/why-i-cant-save-templates-or-other-files/ - Categories: Advanced, Troubleshoot - Tags: filepermission, filesystem, fsdirect Troubleshooting issues with saving templates in WordPress plugins like Mailster can be frustrating. Common causes include permission errors, plugin conflicts, cache problems, JavaScript errors, insufficient server resources, and database issues. Use tools like the Health Check Plugin for easier diagnosis, and follow systematic steps to resolve the problems effectively. --- - Published: 2013-11-24 - Modified: 2025-04-20 - URL: https://kb.mailster.co/why-do-i-get-this-parse-error/ - Categories: Troubleshoot - Tags: error, parseerror Mailster may display a "parsererror 200" when an Ajax request fails to return valid JSON, often due to third-party plugins or unexpected server outputs. To diagnose the issue, check the developer console for detailed error information. --- - Published: 2013-11-24 - Modified: 2025-04-21 - URL: https://kb.mailster.co/how-can-i-open-the-browsers-console/ - Categories: Troubleshoot - Tags: console, error The Browser Console is essential for tracking JavaScript errors and server-related information. Access it in Chrome (CTRL + SHIFT + J), Safari (CTRL + ALT + I), IE9 (F12), Firefox (CTRL + SHIFT + K), or Opera (CTRL + SHIFT + I) to troubleshoot effectively. --- - Published: 2013-11-22 - Modified: 2025-04-20 - URL: https://kb.mailster.co/why-im-not-able-to-connect-to-bounce-server/ - Categories: Troubleshoot - Tags: bounce, ports To set up a bounce server, use port 110 or 995 for SSL connections. If you encounter an "Unable to connect" error, your host may be blocking the port. Check the open ports in the Settings => Newsletter => System Info Page for troubleshooting. --- - Published: 2013-11-19 - Modified: 2025-05-21 - URL: https://kb.mailster.co/why-cant-i-use-smtp/ - Categories: Troubleshoot - Tags: delivery, smtp SMTP (Simple Mail Transfer Protocol) utilizes various ports (25, 993, 465, 587) for email sending, but providers may block specific ports or restrict use to their own servers. To check port accessibility, visit Settings => Newsletter => System Info. Consider alternative delivery methods or free plugins if ports are blocked. --- - Published: 2013-11-18 - Modified: 2025-04-21 - URL: https://kb.mailster.co/mailster-is-not-able-to-access-the-file-system/ - Categories: Troubleshoot - Tags: filepermission, filesystem, fsdirect To resolve Mailster's file system writing issues, adjust your WordPress file permissions or add `define('FS_METHOD', 'direct');` in your wp-config.php. After doing this, dismiss the error message, and it won't reappear if the configuration is correct. --- - Published: 2013-11-13 - Modified: 2025-05-21 - URL: https://kb.mailster.co/how-can-i-setup-a-cron-job/ - Categories: Cron - Tags: cron, cronjob, crontab Ensure your email campaigns are sent correctly by properly setting up your cron. You can use WP-cron for automatic scheduling or opt for a real cron job for more control. Check your host's guidelines for setup and troubleshooting to ensure smooth operation. --- - Published: 2013-11-12 - Modified: 2025-05-21 - URL: https://kb.mailster.co/what-are-my-sending-limits/ - Categories: Deliverability - Tags: limits Mailster allows you to customize email sending rates to comply with your provider's limits, typically 1-2 emails per second. Customers can achieve up to 12 emails per second. Avoid sending over 200 emails simultaneously to prevent server timeouts. Always check your provider's specific sending limits. --- - Published: 2013-11-10 - Modified: 2025-04-20 - URL: https://kb.mailster.co/how-can-i-customize-the-notification-template/ - Categories: Customization, Getting Started - Tags: notification template, template Mailster allows you to customize notification emails using the campaign editor. Create a new campaign, select the notification template, and edit content while retaining essential tags. Save the new template, ensuring it’s stored correctly. For FTP edits, access the templates folder in wp-content/uploads/mailster, but avoid modifying plugin folder files. --- - Published: 2013-11-10 - Modified: 2025-04-20 - URL: https://kb.mailster.co/mailster-doesnt-work-with-a-third-party-plugin/ - Categories: Troubleshoot - Tags: third party plugin Mailster aims for compatibility with popular plugins by adhering to WordPress Coding Standards. If issues arise, follow our debugging guide: disable plugins to identify conflicts and test with the default WordPress theme to rule out theme-related problems. --- - Published: 2013-11-10 - Modified: 2025-05-21 - URL: https://kb.mailster.co/how-can-i-prevent-that-my-campaigns-went-in-spam-folder/ - Categories: Deliverability, Troubleshoot - Tags: spam To avoid spam filters in email campaigns, conduct a spam score test, use a dedicated Email Service Provider (ESP), and authenticate emails with DKIM and SPF. Encourage users to whitelist your address, avoid spammy words, and only send to subscribed users. Follow legal guidelines and utilize Mailster's precheck feature for improvements. --- - Published: 2013-11-10 - Modified: 2025-05-21 - URL: https://kb.mailster.co/what-is-the-can-spam-act-and-do-my-newsletters-have-to-comply/ - Categories: Privacy - Tags: can-spam, spam The CAN-SPAM Act of 2003, signed by President Bush, established national standards for commercial email in the U.S. It mandates compliance to prevent legal issues with newsletters. Similar laws exist globally, including Canada’s CASL and Australia’s Spam Act, ensuring email marketing adheres to specific regulations. --- - Published: 2013-11-10 - Modified: 2025-04-20 - URL: https://kb.mailster.co/the-latest-cronjob-hasnt-been-finished/ - Categories: Cron, Troubleshoot - Tags: cron, memory limit, timeout Email delays may lead to server timeouts and inaccurate statistics. If you receive a notification, it could be temporary and may resolve itself. For recurring issues, consider increasing your server's memory limit or reducing the number of emails sent at once in newsletter settings. --- - Published: 2013-11-10 - Modified: 2025-04-20 - URL: https://kb.mailster.co/how-can-i-increase-my-memory-limit/ - Categories: Cron - Tags: memory limit Encountering the "Allowed memory size exhausted" error in WordPress indicates the need to increase your PHP memory limit. This guide outlines methods to adjust the memory allocation, including editing wp-config.php, .htaccess, or php.ini files, ensuring your site runs smoothly as it grows. --- - Published: 2013-11-10 - Modified: 2025-05-21 - URL: https://kb.mailster.co/how-can-i-update-to-the-latest-version/ - Categories: Troubleshoot - Tags: update To update Mailster, visit your WordPress Updates page or enable automatic updates in settings. You can also update via your Freemius account, Composer, or manually from Envato after six months. Ensure to upgrade your license for ongoing automatic updates. --- - Published: 2013-11-10 - Modified: 2025-05-21 - URL: https://kb.mailster.co/my-provider-doesnt-allow-sending-bulk-mails/ - Categories: Deliverability - Tags: delivery Your provider restricts bulk and outgoing mail. Consider using dedicated email services like SendGrid, Mandrill, Amazon SES, or SparkPost. If Mailster lacks a specific add-on, you can revert to SMTP. Explore free WordPress plugins for various delivery methods. --- - Published: 2013-11-08 - Modified: 2025-04-29 - URL: https://kb.mailster.co/how-do-i-export-my-subscribers/ - Categories: Getting Started - Tags: export, subscribers Easily export your subscribers from the "Manage Subscribers" page by selecting the "Export" tab. Choose your lists, set conditions, and specify the status to filter your audience. Define the fields and their order, then export as an Excel or CSV file, with settings saved for future use. --- - Published: 2013-11-07 - Modified: 2025-05-21 - URL: https://kb.mailster.co/why-i-get-a-could-not-execute-usr-sbin-sendmail-error-message/ - Categories: Troubleshoot - Tags: delivery, sendmail, simple Sendmail is a widely used mail transfer client, but ensure the path "/usr/sbin/sendmail" is correct and you have permission to use it, as shared hosts may disable this feature. For bulk mailings, consider using a dedicated email provider or a free WordPress plugin to avoid limits and errors. --- - Published: 2013-11-07 - Modified: 2025-04-20 - URL: https://kb.mailster.co/why-my-campaigns-do-not-get-sent/ - Categories: Cron, Troubleshoot - Tags: campaign, cron, delivery, memory limit If your email campaign isn't sending, check key settings: verify newsletter delivery and cron job functionality, ensure server resources are adequate, and confirm you've selected recipients. Additionally, review any potential server issues or conflicts with third-party plugins. For assistance, contact your provider if you hit sending limits. --- - Published: 2013-11-07 - Modified: 2025-04-20 - URL: https://kb.mailster.co/why-are-my-auto-responders-not-getting-send/ - Categories: Troubleshoot - Tags: autoresponder Setting up a custom autoresponder can be challenging. If you're facing issues, check that your campaigns are active, emails can be sent from WordPress, conditions are met, the set time has elapsed, and your cron jobs are functioning properly. --- - Published: 2013-11-07 - Modified: 2025-04-20 - URL: https://kb.mailster.co/where-is-my-purchasecode/ - Categories: Account & Licenses - Tags: license, purchase code To find your Mailster Newsletter Plugin license code from the Envato Marketplace, log in, go to "Downloads," select the plugin, and click the License certificate link. If purchased directly from our website, manage your licenses through our site for easier access. --- --- ## Pages - Published: 2013-11-07 - Modified: 2025-10-21 - URL: https://kb.mailster.co/changelog/ Version 4.1.10 enhances the capabilities and permissions system, improves error handling in form blocks, and refines homepage editing controls. Previous updates addressed various bugs and added features like new workflow capabilities and improved translations, ensuring a more robust user experience and streamlined functionality. --- - Published: 2013-11-07 - Modified: 2025-05-21 - URL: https://kb.mailster.co/contact/ Need support? Check our knowledge base and documentation first. For Mailster help, register and create a ticket in our Member Area. For general inquiries or assistance with premium templates, feel free to contact us directly. --- ---