We installed our Exchange 2000 Server systems as ordinary member servers. As part of an Active Directory (AD) upgrade, we're considering moving the Exchange servers to a separate organizational unit (OU). Will doing so break anything?
The answer depends on what Group Policy policies you have in place. Most organizations leave their Exchange servers in the Computers OU, which is the default OU for Exchange member servers. This OU is convenient for policy application, but if you want to apply Exchange-specific policies, you can use the Microsoft Management Console (MMC) Active Directory Users and Computers snap-in to move the Exchange servers to another OU. However, you'd be wise to install Exchange on a server before you move that server out of the Computers OU; Exchange 2000 Setup expects the target computer to be in that OU. If you suspect that you're having Group Policy problems after the move, you can use the Policytest and Gpresult tools (available in the Microsoft Exchange 2000 Server Resource Kit and the Microsoft Windows 2000 Server Resource Kit, respectively) to nail down the problem's cause.