Subject: Returned mail: see transcript for details

From: Mail Delivery Subsystem <[email-masked]>
Date: Wed, 22 Oct 2008 23:40:05 -0500

The original message was received at Wed, 22 Oct 2008 23:40:02 -0500
from 200-206-225-23.dsl.telesp.net.br [200.206.225.23]

SIGabc123COPMailmanMessage789xyzSIG

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

   ----- Transcript of session follows -----
550 5.1.2 <[email-masked]>... Host unknown (Name server: hoexbh1.conoco.net.: no data known)