Problem: In Exchange 2007 we have a group of users inside a particular OU named "Disabled Users". We want to grant full access permission to those mailboxes to the Domain Administrator so we can backup content to a PST file.
Solution: Run the following shell command. <<my domain>> is the AD domain used by Exchange 2007
get-mailbox -organizationalunit "Disabled Users" |Add-MailboxPermission -accessRights FullAccess -user <<my domain>>\Administrador
