I recently worked with a customer who had inadvertently deleted all their user accounts (and thus their Exchange mailboxes), and with no backup available, they had to recreate them. Talk about a nightmare! After they did so, they were able to get their...

Update: The Exchange 2010 issue was resolved in SP2 RU1. Recently, there have been some theories flying around the blogosphere about the way archive stubbing affects space reclamation in Exchange databases. Specifically, some have questioned whether Exchange...