We recently upgraded our backend to GW8 HP2, but have only upgraded a few clients. This problem exists on both the 7.0.2 HP and 8.0 HP2 clients.

When I right-click on a message in the Sent Items folder and choose Delete and Empty, if I next select just from the Recipients Mailbox, it deletes and empties from ALL mailboxes, including my own Sent Items folder.

This happens for all our users.