Hello,
 
The_Exchange_Team Greg Taylor - EXCHANGE  Exchange 2016 is not supported on Windows server 2019. And you don't activate Exchange 2019. How we can do hybrid with Server 2019?
 
=> Support team say "Client must now buy server & CAL for an hybrid deployement, because it is the new rule from The_Exchange_Team ". But Customer pay for office 365 mailboxes and exchange is a prerequisite for hybrid and for managing local console... https://docs.microsoft.com/fr-fr/exchange/hybrid-deployment-prerequisites
 
I have some customers with new servers on Windows 2019 and with "demo" exchange 2019 that are in end of demo time and it is now critical to have a real solution for that...
 
Thanks for your help,