Find solutions to common problems and technical issues you might encounter while using Mailster. This section provides step-by-step guidance for diagnosing errors, resolving conflicts with themes or plugins, handling email delivery problems, and interpreting log files or debug information. Whether you’re facing setup glitches or advanced functionality quirks, this category helps you get Mailster back on track.
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.
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.
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.
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.