Hi Folks,
I'm busily trying to tune our system to reduce the amount of bounceback we generate. (Wietse - thanks for earlier reply!) Context: Postfix mail system, with sympa mailing list manager. Obviously, I'm doing what I can to discard incoming mail with forged addresses.. still a struggle. One obvious thing that I did was to changed the "bounce" lines in master.cf to "discard" - which has eliminated multiple attempts to deliver messages to addresses that accept-then-bounce. But I'm still seeing things like this: Mar 29 14:10:44 server1 postfix/smtp[13617]: 0320DCC5E0: to=<substanceab...@expern.top>, relay=o4pz11.expern.top[216.169.122.211]:25, delay=1373, delays=1193/0.05/0.31/180, dsn=4.4.2, status=deferred (conversation with o4pz11.expern.top[216.169.122.211] timed out while sending message body) Where messages are getting rejected during the smtp phase (presumably by header checks and/or blocklist checks) - what's the magic configuration change to have these discarded rather than deferred? Thanks, Miles Fidelman
