This list is currently witnessing the same conflicts and arguments about the effectiveness of DMARC as when SPF was introduced. But from the evidence I have seen, it is helping.
Our domain was receiving 9,000 to 15,000 email connection attempts per day. Now I know that is a drop in the bucket for some, but for a domain that has not sent or received email for over 15 years, it is ridiculous. I am a firm believer in rejecting email before DATA, and I have implemented such a system. DMARC in and of itself does not do that, but spammers are realizing that the spoofed emails using our domain name are not getting through, and email from the large email suppliers who support DMARC has dropped off substantially. Between DMARC and the changes we have implemented, we are now down to 400-500 connection attempts per day. And as an added benefit, Yahoo is now checking for TXT records instead of the thousands upon thousands of type "99" requests. J.A. Coutts _______________________________________________ dmarc-discuss mailing list [email protected] http://www.dmarc.org/mailman/listinfo/dmarc-discuss NOTE: Participating in this list means you agree to the DMARC Note Well terms (http://www.dmarc.org/note_well.html)
