I was trying to send a message to a friend at Eastern Michigan U. and it bounced back with the following messages. Is it really possible that MSU has a bad reputation on Merit?

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  [log in to unmask]
    host emusmtp.merit.edu [207.75.116.75]
    SMTP error from remote mail server after initial connection:
    554-sfdc-vironport02.merit.edu
    554 Your access to this mail system has been rejected due to the sending MTA's poor reputation. If you believe that this failure is in error, please contact the intended recipient via alternate means.

Reporting-MTA: dns; its-mailprd08.mail.msu.edu

Action: failed
Final-Recipient: [log in to unmask]">rfc822;xxxxxxxx[log in to unmask]">@emich.edu
Status: 5.0.0
Remote-MTA: dns; emusmtp.merit.edu
Diagnostic-Code: smtp; 554-sfdc-vironport02.merit.edu
 554 Your access to this mail system has been rejected due to the sending MTA's poor reputation. If you believe that this failure is in error, please contact the intended recipient via alternate means.