Is it possible to change the configuration domain controller in exchange? I ask this because we are changing out an old domain controller for a new one, but before we switch over FSMO roles, we want to let the new one run as a DC for a little while. We noticed in AD on the primariy DC that there are four exchange properties listed for each user. These properties are not listed on any of the other domain controllers, including the new one. I suspect this is because the primary DC is listed as the config DC, and all others are either normal DC or GC. Is this correct? When we do take the old primary DC offline, is there a way to manually choose which DC is the configuration DC? Thank you for your help.