I want to raise our forest and domain functional level but before I do I need to ask this one question.
As concise as I can:
We have 3, 2008 R2 domain controllers. The forest and domain are operating at domain level 2003.
We have a Windows 2003 member server that has Exchange 2003 installed.
MY QUESTION: Can I raise the forest and domain functional level to 2008 R2 or will it cause issues with our Exchange server?
Mind you we use the AD tools on the Exchange server to create email addresses, etc.
Thank you for your time and replies.