I have a one 2003 and two 2000 exchange servers consolidating into one new domain. I need to stage the process so moving all new users to the new domain at the same time is not a reality but they want to have the same email. I have the forwarding working for multiple domains using a single email domain name so that is not a problem. I want to know, should I move them users to the new domain, including their mailboxes (having them log into the new domain) or move the mailboxes, have them login across the trust from the old domain into the new domain for email purposes only. The latter would require less initial work due to permissions for file sharing would not need to immediately change. Any thoughts would be appreciated.
