Subject: Returned mail: see transcript for details

From: Mail Delivery Subsystem <[email-masked]>
Date: Thu, 21 Aug 2008 20:45:42 +0200

The original message was received at Thu, 21 Aug 2008 20:45:41 +0200
from dslb-084-060-202-034.pools.arcor-ip.net [84.60.202.34]

   ----- The following addresses had permanent fatal errors -----
<[email-masked]>

   ----- Transcript of session follows -----
554 5.0.0 Username or Alias unknown
554 5.3.5 Local configuration error