Thanks for your quick reply. Can I least make dovecot write from=<MAILER-DAEMON@domain(1,2,3)>? How can I make "sender_dependent_relayhost_maps" works in postfix?
Best Regards Dmitry On Wed, 22 Jan 2014 14:18:26 +0100 Reindl Harald <h.rei...@thelounge.net> wrote: > Am 22.01.2014 13:39, schrieb Dmitry: > > My problem is that when vacation auto-reply sent the field from=<> > > Because of this does not work "sender_dependent_relayhost_maps" in postfix > > <> is correct in case of auto-responders > > why? > to prevent mail-loops if both sides have a responder > > well, there are special headers too for this but they > rely on be respected by the final destination while > null sender never get bounces and replies > > http://en.wikipedia.org/wiki/Bounce_message > > Bounce messages in SMTP are sent with the envelope sender address <>, > known as the null sender address. They are frequently sent with a From: > header address of MAILER-DAEMON at the recipient site. >
