Re: Discussion from Clamav list

Hi René!

On Mon, Feb 16, 2004 at 12:20:16PM -0300, René Bellora wrote:

>    i started (wasn't my intention) the thread in clamav. I like (and 
> use) ASK, and i think the same as you about the bounces ratio, but i 
> don't get the meaning of this one:
> 
> > The irony of all this is that the ClamAV mailing-list management
> > software
> 
> > would cause the very same problem...

It's not "ClamAV" specific. :) Mailing-list management software will send
back a confirmation before adding users to the mailing-list.  Granted, it
only happens under very specific circumstances, but it can also be used as
a reflector for spam.  I particular don't think ASK, MTAs, mailing-list
software, or autoresponders are effective spam reflectors as they usually
mangle the original message in the reply. This renders the HTML body used by
most spammers useless.

>   anyway, one point raised in clamav was quite relevant: spam with 
> spamcop-spamtrap accounts forged sender. What would result in inclusion 
> in spamcop blacklist. It didn't happen in here, but i think it's just a 
> matter of time. So, i was thinking: is it possible to send challenges 
> only on certain emails? For instance, only those that are below certain 
> SpamAssassin score? I'm using ASK 2.4

You sure can. Use procmail to "filter" the message and add a "header xxxx"
construct to your whitelist allowing everything that is not spam to come in.
Works like a charm.

Regards,
Paga


> 
> 
>    best regards,
>    René
> 
> 
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-- 
Marco Paganini          | UNIX / Linux / Networking
[email protected]   | PGP: http://www.paganini.net/pgp/
http://www.paganini.net | Magnus Frater te spectat...


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