Exchange 2016:- Cannot remove mailbox database
In any Exchange organization, it is common to add and remove mailbox databases, especially the default ones Exchange creates with the install.
Generally when you want to remove a mailbox database you would need to move any mailboxes, arbitration mailboxes, archive mailboxes, plans, etc. however in Exchange 2016 there is one more.
If you try and remove a mailbox database or perform an uninstallation of Exchange 2016 you are presented with the following error:
The reason is that in Exchange 2016 you now have an Audit Mailbox, you can check this by running the following command:
- Get-Mailbox -Auditlog
As you can see in the last command we have a system mailbox, you can now move it to another server as shown below:
You can run the new-move request command to move it to another store and then you can proceed with your cleanup or removal of Exchange 2016.
Hope it helps.