[MM3-users] MTA authentication and smtpd_sender_login_maps

Hi,

I installed Mailman3 successfully and would like to change the default smtp settings to an authenticated connection (smtp_user, smtp_pass). But my Postfix configuration restricts sending messages via the smtpd_sender_login_maps directive (which points to a hashed file I created years ago) and correctly refuses connections for messages with the test mailing list's From header.

I obviously do not want to add an entry to the map file for each mailing list created by someone on the server. Is there a way to programmatically create a sender login map with Mailman?

Thanks, Jan