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.
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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.