It appears that Benny Pedersen via mailop <m...@junc.eu> said: >> It seems wholly appropriate to reject at MAIL FROM if the RFC5321.From >> domain publishes an SPF policy that says "This domain is not used to >> send mail, ever." > >domains with this spf would possible know that spf is more weak then >then rfc 7505 (nullMX) ?
No, not at all. SPF -all says a domain doesn't sent mail. Null MX says a domain doesn't receive mail. They often apply to the same domains, but they're not the same thing. R's, John _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
