https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6247

--- Comment #26 from Neil Schwartzman <[email protected]> 
2009-12-07 15:11:36 UTC ---
(In reply to comment #23)
> > -    DNSBLS: CBL, Lashback, NJABL, Return Path BL, SORBS, Spamcop, Spamhaus
> > Zen, VIRBL
> 
> Could you please check PSBL too?  PSBL has the benefit of being able to show
> you "Evidence" content of spam coming from a particular IP address.

My bad - we already do check PSBL.

BTW: Our DNSBL checks, were arrived at by asking some MAAWG senior technical
advisors, some senders, and some dnsbl operators to rate a bunch of blacklists,
and score them according to footprint, conservative listing policies, and ease
of delisting. IOW, we wanted the most sane lists out there to have intersection
with our whitelistings. ironically, the senders were among the most aggressive
in terms of their respective stances.

Oh! I should have added some information about frequency of checks - entity
checks are periodic, infrastructure periodic to hourly, (DNSBL, spamtraps and
rDNS are hourly, for example), and performance is done daily.

I don't know if I get a vote wrt weighting, but I would like to say that
currently Safe is accorded a -8 and I believe it fair that Certified a
significantly more stringent list be given its due with the score requested,
namely, -6.

Thanks for considering this!

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