Can't you just use Active Directory Users and Computers, right-click on the account, select Exchange Tasks, and then Delete Mailbox?
It's an available option in 2003, but I don't know if it works in 2007.
w^rl0rd wrote: »
Is there a way to force the disconnected mailboxes to delete without removing the associated AD user account?
From what I have read so far, the remove-mailbox cmdlet can be used but it also gets rid of the AD user account which we do not want.