Re: SPF will solve spam and punish spammers

On Fri, 23 Jul 2004 18:11:04 +0100, Paul Howarth wrote
> Sure, but where are these reputation systems going to come from?
They already exist in crude form.  After all, what's SpamCop but an IP-based
reputation system?  You query it, and find out whether that IP has a
reputation for generating spam or not.  The only difference is a reputation
system that worked with SPF would probably be based on the domain name, not
the IP address.