Re: [Asrg] Re: per recipient status

[Tony Finch <dot at dotat.at>]

"Chris Lewis" <clewis at nortel.com> wrote:
>Tony Finch wrote:
>> 
>> Yes, blacklists do this already, though they are binary not ternary.
>
>That's not necessarily true.  Many DNSBLs are already multi-valued
>(zen.spamhaus.org presently has 6 independent "flags"), and they can be
>constructed to be more sophisticated with as many as 2^24 values on a
>single return, and/or being used in scoring.

AFAIK all the multi-value blacklists are combinations of multiple
underlying binary blacklists, and exist to reduce the number of
DNS lookups needed to do multiple blacklist lookups.

Tony.
-- 
f.a.n.finch  <dot at dotat.at>  http://dotat.at/
BISCAY: NORTHEAST 4 OR 5. ROUGH BECOMING MODERATE OR SLIGHT. SHOWERS. GOOD.

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