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Re: spam hell

From: Pavel Roskin
Subject: Re: spam hell
Date: Tue, 29 Jan 2002 08:10:25 -0500 (EST)


> We've stopped most of the shit from Korea based on simple filtering, but
> it's impossible (or close to) to stop the spam that currently gets through
> without closing the list so only subscribers can post or moderating the
> postings from non-subscribers.  Nobody is interested in the moderator job
> I guess, nor am I sure you can even set up moderation with the mailman
> mailing list manager.

It is possible to set up moderation.  Actually, moderation is a wrong 
word.  The only responsibility of the moderator show be preventing spam.
It is also possible to improve filtering without restricting posts to the
subscribers.  In particular, HTML should be banned because of it's 
potential for abuse.  Also there are many headers specific to spam, e.g. 
"X-Mailer: Caretop" or empty "Date:"

There are two things mailman cannot do (as far as I know, without patching

1) It cannot check the body of the message.
2) It cannot discard spam without moderator's approval.
3) It cannot combine conditions.

> BTW, it's driving me nuts too, but I'm out of filtering ideas...

That's what I'm using in my lists:

Subject:[ (]*no subject[) ]*$
Subject: *$
Subject: *[A-Za-z]scribe$
Subject:.*                     .*
Subject: *(antigen|scanmail)
Content-Type: *text/html
From: Hahaha <address@hidden>
X-MSMail-Priority: High

Pavel Roskin

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