Starving spammers of IPs is not really a solution to spam anyway. Reforming smtp is. And it is long long long overdue...<p>What I don&#x27;t understand is that pretty much everyone has an incentive to eliminate spam. ISPs to reduce traffic, emails providers to produce a better service and spend less time dealing with spam. Users for obvious reasons. Only the NSA enjoys the current unencrypted status quo. Why doesn&#x27;t it happen? Why are we stuck with a 30y protocol?