I've run into a dilemma, not sure of the best way to tackle it.
Here's how I got to where I am now.
- We had an Exchange 2007 setup previously in Site A
- I recently installed Exchange 2010, also in Site A
- SSL certificate was purchased, etc. basically everything was set up and I was ready to move mailboxes
- For various reasons it was decided that Exchange 2010 should be run from Site B instead
I thought this should be no problem, I can uninstall Exchange 2010, leaving 2007, then simply install 2010 in Site B, no problem.
Except for the problem:
- I can't uninstall Exchange 2010, because there are arbitration mailboxes in the Exchange 2010 mailbox database.
- I cannot move these to the 2007 server because arbitration mailboxes on a 2010 mailbox database and "can't be move to versions of Exchange earlier than Exchange 2010"
So..... is there some way I can install Exchange 2010 in Site B while its still installed in Site A, but still use the same public-facing DNS name for OWA/EWS/etc? Or must I use a different name and write off the cost of the SSL certificate that would no longer be used?