From: Magnus Bäck (magnusdsek.lth.se)
Date: Tue Jan 03 2006 - 00:41:19 CST

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On Tuesday, January 03, 2006 at 06:05 CET,
     Kev <savage-gardenhanikamail.com> wrote:

> http://www.sa-blacklist.stearns.org/sa-blacklist/sa-blacklist.current

(File with 341k lines.)

> i was thinking about using that list with my sender_access list,
> how much performance will i be loosing with this ?

Probably very little, perhaps not even a measurable loss, but why don't you
measure it yourself? Build an indexed database using different map types
(hash, btree, cdb etc) and measure the lookup time with "postmap -q".
Compare with measurements of lookups against a very small database so you
know the constant-time overhead of postmap(1).

> is it a good ida to use such a BIG list ?

It's hardly a performance problem, but would it really stop that much
crap? Spammers often change their sender addresses, so I expect 99.9 %
of the domains in that list won't hit your server in a million years.
Static blacklists are not the best way to fight spam.

--
Magnus Bäck
magnusdsek.lth.se

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