[Dovecot] Deliver sending bounces from 'MAILER-DAEMON@'

Erland Nylend erland.nylend at lyse.no
Mon May 14 13:22:30 EEST 2007

Hello Timo,

On 2007-05-11, 16:18, Timo Sirainen wrote:
> On Tue, 2007-04-24 at 12:49 +0200, Erland Nylend wrote:
> > | Apr 24 11:42:08 smtp2 postfix/qmgr[6176]: 05BAE3B67E: from=<>, size=3055, nrcpt=1 (queue active)
> > | Apr 24 11:42:08 smtp2 postfix/qmgr[6176]: 05BAE3B67E: to=<MAILER-DAEMON@>, relay=none, delay=0.01, delays=0.01/0.01/0/0, dsn=5.1.3, status=bounced (bad address syntax)
> ..
> > It seems to me that dovecot is sending bounce messages from
> It says to=<MAILER-DAEMON@> so I'd guess the Return-Path: header in the
> message was that?

Could you have a look at this case again?

The messages to deliver have the smtp "mail from" and Return-Path
set to <>. (they're bounces) 

I can reproduce the problem by telnet'ing to the postfix server, and
sending bounce mails to an account over quota.

It seems that deliver is sending bounces on the bounces, which I
think is an error.

Erland Nylend

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