I resently migrated to an Exchange 2010 server from an Exchange 2003 server. I've moved all the mailboxes and public folders over. What is left is to do is find a way to make the Exch 2010 server to function as a smarthost for my web servers located at a hosting facility. Exch 2003 was setup to route mail for the web servers but I can't figure out how to do that in Exch 2010.
I'm having to keep my old Exch 2003 server alive just to keep sending mail on behalf of my web servers.