Moving Exchange site to new domain

[joelu]

We have 2 Exchange servers(1 organization, 2 sites) in our NT4 domain. We need to move one of the Exchange servers to a new domain and we'd like to be able to keep the Exchange server intact. There are 50 NT accounts and mailboxes from the current domain that need to be migrated to the new domain. Can we break the network connection, promote a BDC to a PDC (to keep the NT accounts) and then rename the domain to a new name? Or can we create a new PDC and domain, create the NT accounts needed and then somehow sync the NT accounts with the Exchange accounts. One glitch, the Exchange server we want to move is a BDC. Is there another scenario? Any suggestions?

 

[ERake]

Nasty situation. There is a utility called Upromote which will let you change a bdc to a member server or the other way around. However, you can't change the domain name on a bdc/pdc; if you make the new domain, you won't be able to sink up the accounts, but you could set up a trust relationship and then attach the accounts from the new domain to your mailboxes. This is all assuming you don't mess with your organizational structure. I am pretty sure you can't separate your sites into different domains...you certainly can't do it without rebuilding the mailserver.