The only way to blacklist a sender after spam gets through and delivered is to manually copy the email address and add it to the blacklist. There should be a "delivered" log tab similar to the "Spam QUarentine" tab, which allows for quarentined emails to be added to blacklist/whitelist/deliver/delete but for delivered emails, so I can go through the log and just mass-select a bunch of spam that got through and add the senders to the blacklist easily through the UI instead of doing each one by-hand.