Returned mail: see transcript for details

The original message was received at Tue, 24 Jul 2007 07:14:44 -0400 (EDT)
from gateway.tjhale.com [66.100.24.201]

   ----- The following addresses had permanent fatal errors -----
<aes2_at_acpub.duke.edu>
    (reason: 550 <aes2_at_acpub.duke.edu>: Recipient address rejected: User unknown in relay recipient table)

   ----- Transcript of session follows -----
... while talking to mx.oit.duke.edu.:
>>> DATA
<<< 550 <aes2_at_acpub.duke.edu>: Recipient address rejected: User unknown in relay recipient table
550 5.1.1 <aes2_at_acpub.duke.edu>... User unknown
<<< 554 Error: no valid recipients

attached mail follows:

Dear user aes2_at_acpub.duke.edu,

Your e-mail account has been used to send a large amount of spam messages during this week.
Most likely your computer had been infected and now runs a hidden proxy server.

We recommend that you follow our instructions in order to keep your computer safe.

Have a nice day,
acpub.duke.edu user support team.