Scott, I appreciate your ethusiasm, but your logic is flawed and your percentages are off by greater than 88 percent. SPF is useful for what it does. It does limit backscatter (more places check SPF than don't). It's a piece of the puzzle, and fairly effective for what it does. On May 8, 2008, at 5:38 PM, Scott Likens wrote: > I wish that was really true, > > However having a spammer recently using my domain and email address to > spam viagra. SPF etc don't really work unless the receiver is using > SPF checking. > > The simple truth is, bots check mailing lists, spam as users like you > or I. They find a new target, and start over and over again. > > They don't care about SPF, or anything related to that. Because if > 5-10% of their spam gets filtered, that still means they were only > shorted by 10,000 emails maybe. > > ... Truthfully the real solution is for ISPS to cancel those accounts > when reported, and report them when you catch them. It's a cat and > mouse game that until there is a OS that 90% of the World uses that > isn't exploitable in under 30 Seconds... will never end. > > As there is always some vulnerability, there is always someone willing > to use that vulnerability for purposes of making money. > > > On May 8, 2008, at 4:55 PM, Jules Agee wrote: > >> Marc Grober wrote: >>> I am getting pounded by backscatter as a result of one of my >>> addresses >>> being used by some major spammers. Are there any solutions >>> available to >>> address all the Delivery failure and bounce notices. I would at >>> least >>> like to be able to sort between such responses from mail I am >>> actually >>> sending and the backscatter. I have looked through headers and >>> nothing >>> seems an obvious candidate. >> >> Setting up SPF for your domains will help. >> http://www.openspf.org/ >> >> -- >> Jules Agee >> System Administrator >> Pacific Coast Feather Co. >> julesa@xxxxxxx x284 >> ---- >> Cyrus Home Page: http://cyrusimap.web.cmu.edu/ >> Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki >> List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html >> >> >> !DSPAM:48239ac333621804284693! >> >> > > ---- > Cyrus Home Page: http://cyrusimap.web.cmu.edu/ > Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki > List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html -- Jo Rhett Net Consonance : consonant endings by net philanthropy, open source and other randomness ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
