from some days to this, I started to receive delivery notifications emails in one of the domains of my servers. Messages like this:
This report relates to a message you sent with the following header fields:
Message-id: <45978008.9010302@mydomain.com>
Date: Sun, 31 Dec 2006 14:46:56 +0530
From: fetal position
To: ahrendt@bonding.de
Subject: Wish You Smiles And Good Cheer!
Your message cannot be delivered to the following recipients:
....
What´s the problem with that? I´ve checked my mail server configuration reding the forum, and I have the open relay closed to the world.
Any idea? Thanks in advance, Simon.