I'm experimentally using Mandrill as an SMTP relayhost for my Postfix setup.
At the moment I'm stuck at understanding how bounce notifications work.
- User Joe has his desktop mail app configured to send via my Postfix
- He composes a message, making a typo in the "To" address, and sends it
- My Postfix receives it and relays it to Mandrill
- Mandrill tries to deliver the message, that fails. A bounce event is visible in the Mandrill web interface.
My Postfix knows nothing about the bounce:
Apr 7 11:40:54 mailserv postfix/smtp[8555]: 197A04DC004: to=, relay=smtp.mandrillapp.com[54.71.32.218]:587, delay=1.9, delays=1/0.04/0.58/0.24, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 694A32C0342)
Apr 7 11:40:54 mailserv postfix/qmgr[27068]: 197A04DC004: removed
This shows that the message was successful sent to (and accepted by) Mandrill. Nothing else is logged.
Shouldn't there be a DSN message from Mandill back to my Postfix, saying the message bounced? How is Joe supposed to know that his message bounced?
I've been googling this for an hour, and I'm stumped. Any help appreciated :)
http://ift.tt/1dvHQ0Z
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