Subject: Returned mail: see transcript for details

From: Mail Delivery Subsystem <[email-masked]>
Date: Tue, 23 Sep 2008 08:01:39 +0200

The original message was received at Tue, 23 Sep 2008 08:01:31 +0200
from [125.106.140.98]

   ----- 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