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[Jef Poskanzer]

>interested in - what you see.  Now, they know that your spam filter sees 
>a lot of stuff that they can hide from you, so why not include it in the 
>message also, to trick the filter.

Except it doesn't work.  I filter a thousand spams a day, and if any
of these tricks were working I'd be flooded with false negatives.  I'm
not, bogofilter is working just fine.  If you believe otherwise, then
as David says it's up to you to provide numbers.
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Jef

         Jef Poskanzer  jef at acme.com  http://www.acme.com/jef/