[Mobilepartners] Returned mail: User unknown

[postoffice@broad.mit.edu]

The original message was received at 2009-03-16 06:11:05 -0400
from postoffice.(null) [10.0.0.1]

   ----- The following addresses had permanent fatal errors -----
<dunnr at broad.mit.edu>

   -----Transcript of session follows -----
... while talking to postoffice.(null).:
>>> RCPT To:<dunnr at broad.mit.edu>
<<< 550 5.1.1 unknown or illegal alias: dunnr at broad.mit.edu
550 <dunnr at broad.mit.edu>... User unknown
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From: VIAGRA X Official Site <mobilepartners at mit.edu>
Subject: Re: [Mobilepartners] Dear mobilepartners at mit.edu Pharmacy Message
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Date: Sun, 15 Mar 2009 13:24:33 -0400 (EDT)
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Url: http://mailman.mit.edu/pipermail/mobilepartners/attachments/20090316/af8d6cd5/attachment.eml