I've searched but haven't found quite what I'm trying to do. I have
found a couple of similar questions here but no answer to my problem.
I have a dozen outbound Postfix mail servers (vers. 2.5.5-6.8 & 2.5.2)
processing a relatively large amount of e-mail from a "service" account,
which triggers greylisting from providers such as yahoo.com and
txt.att.net. Our inbound server gets overwhelmed processing bounced mail
notifications in addition to SPAM and regular inbound e-mail. I was
asked to config the outbound mail servers to quit returning deferred
message delivery notifications back to our mail server but I'm not
really seeing way to do that. These are 4xx messages... usually 421. We
still need to process undeliverable (5xx) messages.
If I understand correctly, this is handled by the "bounce" application
which is specified in the services section /etc/postfix/master.cf. The
line that I believe would need to change is:
defer unix - - n - 0 bounce
If I understand Postfix, the bounce application will handle both the
delivery status notification that I'm trying to suppress and re-queuing
the message for later delivery. I don't see any documented options to
allow it to re-queue without sending the notification, but I may be
reading past it if one is available. I don't see any other mechanism to
handle the re-queue without the delivery notification. Can anybody help?
I do have and example of the postconf -d if you'd like to see the whole
thing, or I could provide specific variables if that would be easier.
TIA,
Paul
