We are running Exchange 2010 SP1, I have some users with large mailboxes, and quite a few items in their 'Deleted Items' folders. Tried having them delete, but outlook hangs. OWA is ok, but the users are part of our call center, and 'dont' have the time' to clean up their mailboxes. Looking for a command to permanently delete their Deleted Items folder. I've tried the 'Search-Mailbox' command, but can't seem to get the parameters correct.
i.e. Search-Mailbox -Identity jdoe -TargetFolder "\Deleted Items" -DeleteContent
Response asks for TargetMailbox: jdoe
Response: Warning: the source mailbox 'jdoe' will not be searched because it is the target mailbox. The source mailbox cannot be used as the target mailbox.
Moving forward, it's a matter of training the users to clean up their mailboxes.