As I already sent a mail about this person this morning to 
mailman-owner@lists.digium.com
But obviously nothing has happened.
Can whoever is in charge of this list remove this user !!!
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Undeliverable: [Asterisk-Users] asterisk codec sizes, data plus overhead
From:  "System Administrator" <postmaster_no_reply@mydomain.com>
To:  marrandy@chaossolutions.org
Date:  Today 08:43:32 pm
Sorry, your message to asterisk@metrotel.net could not be delivered.
The specific error is:  server error - unknown user
<asterisk@metrotel.net>
The original Message was:
================================================================================
Received: from 216.207.245.21 by 192.168.5.233 (LogSat Software SMTP Server - 
Unlicensed Evaluation Copy) Fri, 5 Dec 2003 19:43:32 -0600
Received: by lists.digium.com (Postfix, from userid 506)
        id 40E612441D8; Fri,  5 Dec 2003 19:52:26 -0600 (CST)
Received: from digium.com (localhost [127.0.0.1])
        by lists.digium.com (Postfix) with ESMTP
        id 1E9F624352E; Fri,  5 Dec 2003 19:50:07 -0600 (CST)