Well, at this point, its moot right? :)
I would continue moving forward and get 2019 in there and move the mailboxes to it.
Domain Controller 2019 with Exchange 2013
Dear Forum,
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
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Andy David - MVP 142.2K Reputation points MVP
2021-04-09T15:26:20.127+00:00
2 additional answers
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Xzsssss 8,861 Reputation points Microsoft Vendor
2021-04-12T02:28:03.617+00:00 Hi @Sherlon Martina ,
Yes the Exchange 2013 will not support Windows server 2019 as the domain controller, but you still have 2016 mixed.
I think the question is the schema master, that refers to the first Windows server you've installed.
But as you said, it is running, so I think you could go on migrating.
Oh you can export the mailboxes to pst files to backup, and you can follow the deploy assistant to do the migration.Regards,
Lou
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Sherlon Martina 21 Reputation points
2021-04-26T13:14:28.947+00:00 Dear All,
Thank you for your feedback.
What I will do is replicate the scenario in a test lab. Then introduce the Exchange 2019 is simulate a migration.
It that goes well I will do the same into he production environment.
Thank you again for you input.