Subject: Returned mail: see transcript for details

From: Mail Delivery Subsystem <[email-masked]>
Date: Thu, 21 Aug 2003 14:55:25 +0300

The original message was received at Thu, 21 Aug 2003 14:55:23 +0300
from flsk.fo [212.55.60.98]

   ----- The following addresses had permanent fatal errors -----
<[email-masked]>
    (reason: 553 5.0.0 Unknown user or bad destination mailbox - not accepted.)

   ----- Transcript of session follows -----
... while talking to [195.148.230.227]:
>>> DATA
<<< 553 5.0.0 Unknown user or bad destination mailbox - not accepted.
554 5.0.0 Service unavailable