Question : A configuration error in the e-mail system caused the message to bounce between two servers or to be forwarded between two recipients

we have an exchange organization , exchange 2003 , two routing groups , Houston and Dallas.
I have a group HOAccounting. The bridge server is Houston group is HOIMS and in Dallas is DAIMS.
When dallas sends an email to HOAccounting emails is delivered. When i sent from Houston i get ...
[email protected] on 1/7/2010 8:41 PM
            A configuration error in the e-mail system caused the message to bounce between two servers or to be forwarded between two recipients.  Contact your administrator.
           

It started few days ago. No changes were made.
Any ideas ?

Answer : A configuration error in the e-mail system caused the message to bounce between two servers or to be forwarded between two recipients

There is a possibility that two users sharing same email address

Please check event id 9514

4.4.6 means Too many hops.  Most likely, the message is looping.

http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_23277542.html