Returned mail: see transcript for details

The original message was received at Wed, 31 Jan 2007 11:09:05 -0600
from plat-84.dsl.mhtc.net [216.180.208.85]

   ----- The following addresses had permanent fatal errors -----
<mitra_at_iastate.edu>
    (reason: 550 5.5.0 <mitra_at_iastate.edu>... user unknown - host 216.180.192.13)

   ----- Transcript of session follows -----
... while talking to mailin.iastate.edu.:
>>> DATA
<<< 550 5.5.0 <mitra_at_iastate.edu>... user unknown - host 216.180.192.13
550 5.1.1 <mitra_at_iastate.edu>... User unknown
<<< 503 5.0.0 Need RCPT (recipient)

attached mail follows:

Your message was not delivered due to the following reason:

Your message was not delivered because the destination computer was
not reachable within the allowed queue period. The amount of time
a message is queued before it is returned depends on local configura-
tion parameters.

Most likely there is a network problem that prevented delivery, but
it is also possible that the computer is turned off, or does not
have a mail system running right now.

Your message was not delivered within 1 days:
Server 155.139.198.102 is not responding.

The following recipients did not receive this message:
<mitra_at_iastate.edu>

Please reply to postmaster_at_lists.village.virginia.edu
if you feel this message to be in error.