We have an AD domain set up with an empty root and two child domains - London and New York. Each child domain has its own site in our Exchange 5.5 org. We are planning to migrate to Exchange 2003 and consolidate both sites into one. The user accounts will stay in their respective AD domains, but the Exch2003 Server will serve them all from the New York domain.
I am not sure how the single Exchange 2003 server is going to handle managing two seperate AD domains in one Exchange site, or if this is even possible. Has anyone been through this particular scenario, and is there anything special I need to do during the migration?