Re: [Exim] Greylisting + multiple MX hosts -> multiple attem…

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Συντάκτης: Ian A B Eiloart
Ημερομηνία:  
Προς: Exim users list
Αντικείμενο: Re: [Exim] Greylisting + multiple MX hosts -> multiple attempts
--On Wednesday, March 24, 2004 10:21 am +0000 Bruce Richardson
<itsbruce@???> wrote:

> On Wed, Mar 24, 2004 at 09:36:16AM +0000, Ian A B Eiloart wrote:
>> > If greylisting becomes common, it stops being a low-scale problem and
>> > they deal with it. Shouldn't be hard.
>>
>> Yes, but that is an argument that you could use against ANY anti-spam
>> proposal. Its a little like telling a medieval knight that body armour is
>> useless because one day someone will invent guns. This is an arms race -
>> we can't win or lose, we can only stay ahead or drop behind.
>
> No, it is not the same. Neither SpamAssassin nor DSPAM is going to
> become obsolete overnight. Greylisting may well - it's a simple
> one-trick pony.


But Baysian filters have their limitations. Researchers already have lists
of words that these filters tend to like, and techniques for refining those
lists on a per filter basis.


--
Ian Eiloart
Servers Team
Sussex University ITS