We are currently operating two different Windows Server 2003 domains at two different sites. The sites are connected by a VPN and there are trusts in place between the domains.

In each domain is an Exchange server. In Domain A, Exchange Server 2003 and in Domain B, Exchange Server 2010.

Ahead of any wholesale user migration, we would like to do a few things:

  • Make the GAL from each site accessible/visible at the other.
  • Route "internal" mail directly between the servers. At present the mail is routed via the Internet between the sites.
  • Eventually, migrate the mailboxes from the Exchange 2003 server to the Exchange 2010 server and have all mail clients connect to that.
  • Redirect all inbound mail via the one Exchange 2010 server.

Are these realistic and acheivable goals and can anyone offer any advice or point my in the right direction for documentation?


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