Performing the actual migration is often a moment to cross your fingers … and of course you will receive some errors when you start moving the first mailboxes.
Luckely, this one can pretty easy be fixed.
Follow the following steps:
- Open your Active Directory Users and Computers MMC snapin.
- Go to the View menu and activate Advanced Features
- Now open the properties of the affected user account
- Go to the Security tab
- Click on Advanced
- Select: Include inheritable permissions from this object’s parent
- Click Apply and OK!
Now you should be able to move the mailbox to the new mailbox datastore.