We currenlty have Exchange 2003. I setup a new 2007 server and cannot send to or from a test account I created. I have read several of the EE posts regarding routing problems and determined I do not have a smart host so I know that is not the problem. Also, each server accepts a telnet to port 25. I was following up on the suggestions regarding the routing groups and I am a little confused. Via ESM I can see the routing group connector I created for the 2003 server as part of the 07 setup steps. I do not see any connector under the 07 routing group. Is this my problem? Thanks!