Viktor Dukhovni schreef op 7-1-2014 23:22:
On Tue, Jan 07, 2014 at 11:17:01PM +0100, R. Berger wrote:
This is easy to verify, just set the null_sender pipe(8) option in
the LDA transport correctly, after carefully reading the pipe(8)
documentation.
I allready tried that. I have this in my master:
maildrop unix - n n - - pipe
flags=DRhu [email protected] user=vmail
argv=/usr/bin/maildrop -d ${recipient}
NEVER set the null sender to a real mailbox. This creates mail
loops. It MUST be either "MAILER-DAEMON" or empty.
If however, a valid email address did not address the POP clients,
then MAILER-DAEMON is NOT the problem. You really need to look at
the interaction between the POP client and server, neither of which
is Postfix.
I've removed the null_sender from master.cf but can't see any change in
the Return-Path of the NDR's
Thanks,
Roger
