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Re: SPAM fiiltering



On Sat, Nov 02, 2002 at 11:51:50AM +0000, Colin Watson wrote:
> > 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.
> 
> So that would be why they blacklisted master.debian.org a while back?

Yup.  Spam was sent through on a mailing list, so when it checked the
headers, it came back to m.d.o, among other places.  It also found the
originating source of the spam.

I believe someone in charge of the server was notified automatically
by Spamcop of the mailing list rape, and given a login they could use
to choose how Spamcop handles the incident and, to a lesser extent,
how to handle situations in the future for m.d.o.  Had this person
been paying attention, they could have flagged m.d.o as an Innocent
Bystander and it would have been removed sooner than m.d.o going back
down below 2% two days after.

Ironically, the source of the spam, which Spamcop also detected, was
already listed in the Spamcop BL.  Had m.d.o been using it as a
droplist, the BL would have provided warning not to talk to the
spamming box.

-- 
 .''`.     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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