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Re: SPAM fiiltering



On Fri, Nov 01, 2002 at 10:32:45AM +0100, Jesus Climent wrote:
> RBLs are maintained by people who don't actually know who is a spammer
> and who is not, and trusting them for the decision of who you should
> accept and who you should reject is a broken thing from the very
> begining.

Generally speaking, this is not accurate.  MAPS is notorious for this
behaviour, blacklisting entire subnets over mostly political reasons
in addition.  Notice I do not use MAPS.

Spamcop, for example, works in the exact opposite manner you describe.
It checks against what @spamcop.net email addresses are recieving and
what's reported by all users, regaurdless of wheter or not they have a
Spamcop email address.  If the number of messages reported by humans
as spam via Spamcop exceeds 2%, that IP gets blacklisted for 7 days,
the spam percentage goes back below 2%, or until the ISP notifies SC
that it's fixed.  SC seems to be the most effective, with nearly
surgical precision.

-- 
 .''`.     Baloo Ursidae <baloo@ursine.dyndns.org>
: :'  :    proud Debian admin and user
`. `'`
  `-  Debian - when you have better things to do than to fix a system

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