sendgrid - Mailster Knowledge Base

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 Domain Authentication or Single Sender Verification. Finally, test your setup by sending a test message through Mailster to ensure everything functions correctly.

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 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.