Greetings

The above error message began to show up a few weeks ago and I have not been
able to satifactorily figure out which of my exchange servers is the
culprit.

Back ground:
Active Directory Domain (2003 version)
Exchange 2003 SP2 with all the latest paches applied on a Windows 2003 (x32)
Ent server. This server has been active for more than 4 years and has never
thrown this message before.

In order to prepare for the migration to Exchange 2007, we created a virtual
Windows 2008 (x64) server and installed Exchange 2007 on it. Again letting
MS update to it's hearts content, also letting it sync itself to the domain.
Seemed to do alright.

I then moved my in-active acounts to the new server to see how it was done.
After that step I moved a single active maibox (mine) from the 2k3 server to
the 2k7 server and let it sit. Once the initial teething pains had been
dealt with, it appeared to be stable. I could email anyone.

A few weeks ago, I started getting messages with the information in the
above subject line in them and my external emails were being rejected. I
could email to anyone internal to our domain, but emails to the outside were
failing.

I rebooted the Exchange 2003 server late Friday and the external emails
worked for about three messages again and then back to failures.

I came across messages on the web indicating a UTP encoding mismatch, but
can't figure out where to change it, the Exc2k3 server or the Exc2k7 server.
or for that matter how. I couldn't locate the entries the messages was
indicating.

Anyone come across this yet?

Any help woul dbe appreciated.

Mike Kelly
mkelly at broadviewsoftware.com