I inherited a network that the DC where upgraded to a mix of Windows 2019 and Windows 2016.
Domain level and Forest level are set to Windows 2016.
I was tasked with the upgrade of Exchange 2013 to Exchange 2019.
During the pre-requirement checks I notice that Exchange 2013 does not support Domain controllers 2019.
However in the current environment it is already running.
Now my questions is, is it safe to introduce the Exchange 2019 to the network seeing that the Domain Controllers are already a mix of 2019 and 2016?
What other alternatives do I have for this upgrade?
Thank you in advance for your feedback