Exchange 2010 upgrade with Server 2003 DC
Posted on 2011-02-18
I am running a 2003 R2 domain controller which is the only DC and a seperate Box with Server 2003 and Exchange 2003. I would like to upgrade Exchange to Exchange 2010 by exporting the mailboxes and installing a new box with Server 2008 R2 and Exchange 2010.
My Question is, should I transition the Domain to 2008 R2 first before I introduce the Exchange 2010 box or does it make to difference and fine if I transition to a 2008R2 PDC later?