Forum Discussion
Decomm a single EX16 after migration to MS365
We have moved all users off on-prem EX16 8 weeks ago. 3rd party did full migration to MS365, new external Azure AD, no hybrid mode. EX16 has been in maintenance mode for 3 weeks. Have dismounted data...
Hi itsthejmac
It depends if you still have Entra Sync in Place and if you are using Exchange for Internal Applications to Send Mails to Exchange Online.
Here are the Options
https://learn.microsoft.com/en-us/exchange/decommission-on-premises-exchange
You can use RecipientManagement Snap-Ins to Manage the AD/Exchange Attributes
https://learn.microsoft.com/en-us/exchange/manage-hybrid-exchange-recipients-with-management-tools
Kind Regards
Andres
