From: "Antti Kurenniemi" 

"Steve Ewing"  wrote in message
news:opr2magajhy0yqhy{at}news.barkto.com...
> On Fri, 30 Jan 2004 20:46:12 -0500, Steve Ewing  wrote:
>
> > I have gotten a few weird spams-- apparently they are supposed to either
> > trigger embedded links, or, well, I don't know what.
>
> I did just realize this: they both made it past my bayesian spam filter
> (popfile-- http://popfile.sourceforge.net/).

That's the idea - since bayesian filtering is based on statistic
probability, it's pretty easy to screw it like this. Also, by carefully
selecting the content in the "garbage" part, your filters can be
"programmed". Leave just a few words in it that were previously
considered spam, and now their "spam probability" percentage is
just a bit lower. If you get enough mail like this through your filters,
you may end up getting some more conventional spam through as well.

Bayesian filters are good, but not the real answer to the problem.


Antti Kurenniemi

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