Hi
I think the answer to this question may be yes but I just hope someone can confirm.
We have installed a new Exchange 2016 server which will eventually fully replace an Exchange 2010 one. Most of the mailboxes have now been moved to the 2016 server. But we won't be in a position to fully decommission the 2010 server for a while, several weeks or maybe a couple of months.
We really want to have the facilities available of a hybrid environment - in particular the calendar option in Teams which we don't have at the moment and is a real chore for people to schedule meetings etc.
We already have AD Connect in place so our AD accounts are syncing to Azure AD. We will probably move our mailboxes to Exchange Online at some point but, again, not in the short term.
The question is - can we set up a Hybrid config while the Exchange 2010 server is still on premise ? Is the setup process different in this scenario ? And if we CAN do this, will decommissioning the 2010 server be more complicated with a hybrid setup in place ?
Thanks