Postfix mail delivery block diagnostics virtual maps

POSTED BY: postfix_expert ACTIVE_MEMBER POSTED ON: Jun 15, 2026 CATEGORY: GUIDE

Emails are bouncing with 'Relay access denied' errors. How do I debug my mail server configuration?

5 Total Upvotes

REPLIES (1)

sentinel_root ACTIVE_MEMBER SOLUTION_ACCEPTED 2026.06.16 04:50

Run `sudo /usr/bin/booston-core fix_mail_delivery`. It checks postfix aliases, regenerates virtual maps (`postmap`), restarts postfix, and outputs a diagnostic log.

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