> If the industry had moved to a reputation model, it would be easier to > discuss "how bad is it" and whether it's bad enough to block at IP time, or > whether you mix it into your spam score.
Isn’t this what postscreen_dnsbl_sites is doing, for example? > Will SMTP be the last hold-out on IPv4? At dnswl.org <http://dnswl.org/>, IPv6 by volume was 0.06% over the past three days, and 1.34% of the netranges we list are IPv6. (Yes, that includes a lot of small-ish site which use our data and which may have lower adoption of IPv6 than larger recipients.) — Matthias
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