Re: [Asrg] Spam detection system proposal

["David F. Skoll" <dfs@roaringpenguin.com>]

On Wed, 5 Mar 2003, Chris Lewis wrote:

> Which isn't hard.  If you refuse to get your fingers dirty, you just
> have to download one of the open relay/proxy blacklists...  But if you
> don't mind getting your fingers dirty, just point a scanner at Brazil.
> Thousands within a few hours.

OK.

> We can already see the spammers doing this.  My autobitch bot routinely
> shows me specific spams that have been sent from several hundred or even
> a thousand different IPs in one day.  And this is the viewpoint from
> just _one_ MTA...

I see that ocasionally also (not several hundred, though!).
Nevertheless, I think my scheme is worth doing.  Anything that forces
a certain kind of behavior on spammers is good.  If they're forced to
use open relays and proxies to send spam to avoid being marked as a
person with a bad list, then it makes RBL's that blacklist open
relays, proxies, and dial-up blocks more valuable.

We need a broad-spectrum multi-faceted approach.

--
David.
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