Originally Posted by x14
In Email Reconciliation and set the "Delete On" to "Mailbox and Handheld".
Are you sure? Last I checked this option didn't do anything on BIS unless you're on 1.8 and it only deletes from the BIS server -- not the server of the integrated email account. AFAIK two way reconciliation (not sync -- no BB syncs email) is only possible on BES.