Currently for the additional anti-spam methods (SPF checking, GeoIP checking, DNS blacklists, reverse DNS and MX record checking) the options are to deliver the e-mail or reject. It would be advantageous to have an additional option to either send an advisory email to the recipient advising that the incoming email was rejected or an easily viewable (daily) log of rejected emails. That way a genuine email which was rejected could be quickly identified. Putting the rejected email into a quaranteened folder would simply add to the burden of checking probably spam emails.