What we need is an opt-in for servers, not individuals. If you want to set up a mail server, you have to register it with someone, and prove you aren't a spammer etc. Then I can use the white list of known good servers to decide who to accept mail from. The reverse of the current DNSBL stuff which works somewhat but has obvious limitations.
What we need is an opt-in for servers, not individuals. If you want to set up a mail server, you have to register it with someone, and prove you aren't a spammer etc. Then I can use the white list of known good servers to decide who to accept mail from. The reverse of the current DNSBL stuff which works somewhat but has obvious limitations.