pfix-srsd bounces not handled when using postfix virtual

[caffeinejolt]

Hello!

So, I have pfix-srsd up and running. All mail to the system is just forwarded on via virtual (virtual_alias_maps and virtual_alias_domains). It delivers mail just fine and gets around those pesky SPF delivery errors. However, it does not seem to handle bounces (i.e. rewriting back to the original sender to deliver the bounce). Here is an example of what I am describing:

User 1 (user1@originaldomain.com) emails User 2 (user2@forwardingdomain.com) where user2@forwardingdomain.com is configured in virtual_alias_maps and forwardingdomain.com is configured in virtual_alias_domains. pfix-srsd is running fine on srsdomain.com (same result with or without -I). However, user2@forwardingdomain.com forwards to badaddress@gmail.com which does not exist (will result in a 550 from gmail on attempted delivery).

So, given the above, here is what I am seeing:

• When user1@originaldomain.com sends an email to user2@forwardingdomain.com, the sender address is rewritten to srs0=pl7i=xe=originaldomain.com=user1@srsdomain.com as expected
• postfix determines, via virtual_alias_maps, to deliver the mail to badaddress@gmail.com
• The delivery to gmail.com results in a 550 and postfix then bounces to srs0=pl7i=xe=originaldomain.com=user1@srsdomain.com instead of user1@originaldomain.com. And here lies the problem - I assumed it would bounce to user1@originaldomain.com (after magically being rewritten by pfix-srsd) thereby alerting that user of the problem, but instead when it delivers the bounce to srs0=pl7i=xe=originaldomain.com=user1@srsdomain.com, postfix issues a "status=bounced (unknown user:" error and deletes the bounce.

The end result is that nobody ever gets any bounces (deliveries work fine though - just bounce handling that is problematic).

I am calling pfix-srsd like this (tried with -I and without -I):

/etc/postfix/pfix-srsd -I -p /var/lib/postfix/pfix-srsd.pid -U postfix -G postfix srsdomain.com /etc/postfix/pfix-srs.secrets

And have main.cf setup with these (bounces work as expected when I comment these out):

recipient_canonical_maps = hash:/etc/postfix/pfix-no-srs.cf, tcp:127.0.0.1:10002 recipient_canonical_classes = envelope_recipient sender_canonical_maps = hash:/etc/postfix/pfix-no-srs.cf, tcp:127.0.0.1:10001 sender_canonical_classes = envelope_sender

Shouldn't pfix-srsd rewrite the address for correct bounce delivery in this case? Or is there something additional which must be done to facilitate bounce deliveries?

[caffeinejolt]

Fixed per patch referenced here: http://article.gmane.org/gmane.mail.postfix.user/241722