On Wed, 2010-02-03 at 23:50 +0000, Francis Russell wrote: > dar...@chaosreigns.com wrote: > > > If everyone uses SPF, all we need to block all spam is these rules > > (SPF_NOT_PASS alone should do it), and a blacklist of domains that have > > SPF records including IPs that send spam. > > You might also want to read this: > > http://homepages.tesco.net/J.deBoynePollard/FGA/smtp-spf-is-harmful.html > I'm probably regarded as a slacker by that man because I use SPF for one purpose only - to reduce backscatter. Since the amount of backscatter I got after setting up SPF for my domain dropped dramatically and has remained negligible, I deduce it works pretty well for me.
Martin
