Subject: Returned mail: see transcript for details

From: Mail Delivery Subsystem <[email-masked]>
Date: Wed, 15 Oct 2008 04:04:10 +0400 (MSD)

The original message was received at Wed, 15 Oct 2008 04:04:08 +0400 (MSD)
from 201-167-13-206-cable.cybercable.net.mx [201.167.13.206]

   ----- The following addresses had permanent fatal errors -----
<[email-masked]>
    (reason: 522 Recipient <[email-masked]> Permanent Failure Mailbox Status Mailbox full)

   ----- Transcript of session follows -----
... while talking to [127.0.0.1]:
>>> DATA
<<< 522 Recipient <[email-masked]> Permanent Failure Mailbox Status Mailbox full
554 5.5.0 Remote protocol error (Recipient <[email-masked]> Permanent Failure Mailbox Status Mailbox full)