Re: [Full-Disclosure] Re: [Mailman-Developers] mailman emailharvester

From: Volker Tanger (vtlists_at_wyae.de)
Date: 02/13/05

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    Date: Sun, 13 Feb 2005 12:10:46 +0100
To: full-disclosure@lists.netsys.com

    Greetings!

    On Sun, 13 Feb 2005 15:31:53 +0530
    "Aditya Deshmukh" <aditya.deshmukh@online.gateway.expertworks.net>
    wrote:
    >
    > 1. postfix will reject 90% of the spam during the initial handshake
    > stage - by using a variety of dns / mx resolution tricks
    > 2. clamav and spam assassin integrate into postfix so that you don't
    > have to accept the spam the server can even issue a 550 in the middle
    > of the data stage
    > 3. using some known blacklists like spamhaus and rbl will cut down
    > spam to 99.9 %

    Well, my current stats say:

            User unknown: 25 %
            RBL-blocked: 32 %
            keyword blocked: 1 %
            other blocked: 24 %
            locally delivered: 17 %

    So a "cut down to 99.9%" is a bit pessimistic (filtering only 0.1% out)
    - if you meant "cut by 99.9%" too optimistic. But cutting off 82% even
    before the DATA command is not too shabby. OTOH it is a sign on how bad
    mail has become if more than 80% are plain junk even without looking at
    the content.

    Bye
            Volker 

    -- 
Volker Tanger    http://www.wyae.de/volker.tanger/
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