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

From: Mail Delivery Subsystem <[email-masked]>
Date: Wed, 9 Apr 2008 04:56:46 -0400

The original message was received at Wed, 9 Apr 2008 04:56:23 -0400
from lbi-s.spamh.com [209.62.15.50]

   ----- The following addresses had permanent fatal errors -----
<[email-masked]>
    (reason: 550 sorry, no mailbox here by that name. (#5.7.17)
)

   ----- Transcript of session follows -----
... while talking to [198.143.4.246]:
>>> DATA
<<< 550 sorry, no mailbox here by that name. (#5.7.17)
550 5.1.1 <[email-masked]>... User unknown
<<< 503 RCPT first (#5.5.1)