Am 19.12.2009 16:30, schrieb D G Teed: > On Sat, Dec 19, 2009 at 10:40 AM, John Peach <post...@johnpeach.com> wrote: > > >> On Sat, 19 Dec 2009 04:40:02 -0400 >> D G Teed <donald.t...@gmail.com> wrote: >> >> [snip] >> >> >>> Due to the hardwired default of 450, all sent mail becomes sluggish >>> on the Exchange queue as hundreds of messages are retried >>> every few minutes (one mistyped domain in a mail list triggers this >>> behaviour in MS Exchange). >>> >> Fix the problem, then. >> >> Hint - the problem is exchange, not postfix. >> >> > I'm not the exchange admin and I know little about it. > I don't know if it retries every 5 minutes or 30 minutes. > It doesn't matter. What matters is that email is > massively slowed down for delivery out of exchange. > I think I heard someone say the messages actually > double in the Exchange queue, but that could be > momentary. > > If we could cause the message to be rejected and bounced back > to the sender at the Postfix end, it would resolve the problem. > > Usually Postfix has lots of flexibility in handling different scenarios > but I guess not this time. > > --Donald > > I don't know if this might help you but in the manual I found this parameter which should be working from Postfix 2.6 onwards http://www.postfix.org/postconf.5.html#unknown_address_tempfail_action
Regards tobi