We have 2 Win 2003 Domain Controllers, the first DC has Exchange 2003 on it.
Just wondering which is better to do first. Upgrade Win 2003 to 2008 R2 first and then do the exchange 2003 to 2010 upgrade ? Have no other exchange Server and don't want to break it!
Have heard demoting the DC once we have 2008 R2 up can cause problems.
Outlook version is 2003 and we run in cached mode. I am aware of the encryption issue between Outlook 2003 and Exchange 2010. No plans for Outlook 2010 for a few months.
I have a DL380 G6 available for the new DC and will be getting a new Server for Exchange.
Thanks in advance.