Subject: [Gary] Returned mail: see transcript for details

From: Mail Delivery Subsystem <[email-masked]>
Date: Tue, 29 Apr 2008 07:58:34 +0200 (CEST)

The original message was received at Tue, 29 Apr 2008 07:55:57 +0200 (CEST)
from localhost [127.0.0.1]

   ----- The following addresses had permanent fatal errors -----
<[email-masked]>
    (reason: 550 Unrouteable address)

   ----- Transcript of session follows -----
... while talking to mail.uni-paderborn.de.:
>>> DATA
<<< 550 Unrouteable address
550 5.1.1 <[email-masked]>... User unknown
<<< 503 valid RCPT command must precede DATA