Forum Discussion
exchange decomissioning
Hello some qeustion, We have on-premise active directory with exchange 2016 this exchange server is now down, for mailing we have exchange online, but different domain, nothing with this on-pre...
Are you using Entra Connect to sync your on-premises AD to Entra ID? If so there's a process to follow before you can "decomm" on-premises Exchange. The first issue you have is that it only works for Exchange Server 2019.
https://learn.microsoft.com/en-us/exchange/manage-hybrid-exchange-recipients-with-management-tools
https://learn.microsoft.com/en-us/exchange/manage-hybrid-exchange-recipients-with-management-tools