Forum Discussion
Hybrid Exchange 2019 move to M365
Dear All, I am asked to move/ migrate the existing Hybrid Exchange to M365. All mailboxes are located in M365. MX Record is pointing to the third-party spam filtering company which we are not too ...
If all your mailboxes already are in EXO, I guess what you may want to do is to break and remove the Hybrid configuration? First step here would be to move the Exchange attributes SOA from AD to EXO, explained in
https://learn.microsoft.com/en-us/exchange/hybrid-deployment/enable-exchange-attributes-cloud-management
You want to enable IsExchangeCloudManaged in tenant to cover all new mailboxes created. Then set IsExchangeCloudManaged to True for all other mailboxes.
Please carefully read the documentations as there are considerations to be made.