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Email bounce handling with postfix

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James Pattinson
2025-10-14 16:16:44 +00:00
parent 12a82c8d03
commit f3d7592e7d
12 changed files with 934 additions and 24 deletions
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postfix/smtp_generic Normal file
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# Postfix SMTP Generic Maps
# This file controls the return path (envelope sender) for outbound SMTP emails
# Only applies to emails being relayed through external SMTP (SES in our case)
#
# Format: original_sender rewritten_sender
#
# For mailing list emails, we want bounces to go to our bounce processing address
# This is critical for email-based bounce handling to work properly
# Rewrite envelope sender for all mailing list addresses to bounce address
# When emails are forwarded through mailing lists via SES, bounces come back to us
community@lists.sasalliance.org bounces@lists.sasalliance.org
board@lists.sasalliance.org bounces@lists.sasalliance.org
members@lists.sasalliance.org bounces@lists.sasalliance.org
announcements@lists.sasalliance.org bounces@lists.sasalliance.org
# Generic pattern - any @lists.sasalliance.org sender gets rewritten to bounce address
# This catches any new lists automatically
@lists.sasalliance.org bounces@lists.sasalliance.org
# Also rewrite any envelope sender that's sending through our system
# This ensures ALL outgoing mail via SES has our bounce address as return path
@sasalliance.org bounces@lists.sasalliance.org