I have a 2003/2010 migration. All of the public folders and mailboxex have been moved, RUS has been re-homed. There are no connectors between the servers and mail is working fine. I have a few questions before I uninstall the 2003 server. First, under the first routing group the old server shows up as the master, the new server does not show up. Under exchange routing group the new server shows up as master, the old server does not show up. Is this proper? Should I delete the old server from the first routing group?