Hello Daniel,

Wednesday, June 18, 2003, 11:17:06 PM, you wrote:


DQ> Well, the rule (renamed in 2.60-cvs) does false positive about 0.03% of
DQ> the time:

Thanks for the detailed explanation. I think the nice thing
about SA is that it is user customizable - a false positive
rate of more than 0.03% in large scale mail management
environment might be untenable, whereas in a smaller scale
environment it is negligible, and "safer" to adjust upwards
to the extent that false negatives can be avoided.

Also, you have said that SA parses out the Base64 comment,
but the post that started this discussion came from someone
who had a heavily porn-laden piece of spam come through, and
their SA failed to register any tests on the body.  I myself
have seen Base64 encoded emails get by SA when by virtue of
the content, they should have scored much higher -- but I
admit I never tried to debug to find out why - I just
assumed that the encoding was the source of the problem. (I
noticed the Base64 issue, particularly with porn-spam,
several months ago, with an earlier version of SA). So I
apologize for any misinformation I might have posted - maybe
this is a system specific problem (that is, maybe it has
more to do with the configuration of the mail handling
software on a particular system than SA's capabilities) .. I
don't know.

-Abigail



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