All about appropriating email adresses
I've received email I've never sent. How does it work? Here are some examples of subject:
Received: (qmail 18343 invoked by uid 505); 20 Oct 2003 13:46:29 -0000
Received: from unknown (HELO localhost) (22.214.171.124)
by mx4.ovh.net with SMTP; 20 Oct 2003 13:44:51 -0000
X-Mailer: The Bat! (v1.61)
X-Priority: 2 (High)
Subject: your account sqestwut
Often it's spam send by spammers. They use existing email addresses, such as firstname.lastname@example.org. Then they have more change that the message will be received and not deleted immediately. This message was sent to non-existent recipient, that is why the email returned to the address it was send from.
There isn't a solution to this problem. We cannot block the emails returning to email@example.com because this is a real address.
You may at least try to filter messages by subject:
Log into Manager v3.
Choose "Emails" , then "POP accounts" and next "Filters" . Create an appropriate filter for your problem.