About a month ago I completed my migration from Exchange 2010 to Exchange 2016. Following this, Exchange 2010 was uninstalled. The two Exchange servers (Windows 2008 R2 Standard) have actually been removed from the domain. They have been shut down and removed (Virtual Machines deleted).
I now noticed recently that the servers are still being listed in Active Directory (albeit with a "down arrow" arrow suggesting a disabled account).
I need to clean this up. When I select and try to delete the account, I receive the attached message.
Confirm Subtree Deletion
Object %ServerName% contains other objects. Are you sure you want to delete object %ServerName% and all of the objects it contains?
If you cancel the running deletion, the objects deleted thus far will not be recovered.
WARNING: if you select Use Delete Subtree server control check box, all objects within the subtree, including all delete-protected objects, will be deleted, and the deletion cannot be canceled.
Well, the servers have been gone for a month or more, so I can't see any issues with removing these accounts. But I wanted to run it by you to see if there's anything I may be missing beyond why the accounts did not get removed when I removed them from the domain.