On 06/28/2010 05:05 AM, Alan Cox wrote: >> I believe that's what SPF is supposed to solve. Sites advertise in >> their DNS records which the "official" outgoing email servers are. > > Spammers advertise SPF records of 'the whole internet' (normally split > into chunks to confuse checkers) and turning on SPF checking naïvely > simply helps the spam get through. > > SPF also breaks forwarding in many cases and has other problems > including mailing list interactions. > > The lack of massive uptake is not I suspect chance.. > > Alan > Agreed - SPF is not brilliant. DKIM makes more sense to me. gene -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines