Subject: Returned mail: see transcript for details

From: Mail Delivery Subsystem <[email-masked]>
Date: Wed, 3 Sep 2008 21:25:26 +0300

The original message was received at Wed, 3 Sep 2008 21:25:12 +0300
from r190-132-248-188.dialup.adsl.anteldata.net.uy [190.132.248.188] (may be forged)

   ----- The following addresses had permanent fatal errors -----
<[email-masked]>
    (reason: User unknown)

   ----- Transcript of session follows -----
550 5.1.1 <[email-masked]>... User unknown