[Mobilepartners] Returned mail: User unknown

[postoffice@broad.mit.edu]

The original message was received at 2008-09-06 12:46:47 -0400
from postoffice.broad.mit.edu [10.0.0.1]

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

   -----Transcript of session follows -----
... while talking to postoffice.broad.mit.edu.:
>>> 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 <mobilepartners at mit.edu>
Subject: Re: [Mobilepartners] Dear mobilepartners at mit.edu 76% OFF on Pfizer
Date: Sat,  6 Sep 2008 04:01:45 -0400 (EDT)
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Url: http://mailman.mit.edu/pipermail/mobilepartners/attachments/20080906/13fd57ec/attachment.eml