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.reindl@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.