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Re: Spam and spam filtering, a problem new to me



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On 09/25/06 15:14, Paul E Condon wrote:
> Over tha past few weeks, I have started receiving spam email that
> contains text the is all well formed words, but doesn't make sense as
> a spam message, or as any other sort of communication. I think I have
> found what is going on:
> 
> The email *does* contain a message. It is contained in a .gif or .png
> or other image format file. These are not pictures of naked ladies,
> but images of text that touts various penny stocks. If I didn't use
> mutt, I might not have had so much puzzlement over them. I suppose
> with Outlook all the user sees is the image, which is clearly spam,
> but the user doesn't see what the spam filter sees, so, it seems, no
> amount of filter fiddling will protect against this. What to do? Are
> there new filtering techniques beyond spamassassin?

They are specifically designed to get around SA's traditional
filtering process.  Using sa-learn to train the Bayesian filter,
along with the regular filters, helps a lot.

- --
Ron Johnson, Jr.
Jefferson LA  USA

Is "common sense" really valid?
For example, it is "common sense" to white-power racists that
whites are superior to blacks, and that those with brown skins
are mud people.
However, that "common sense" is obviously wrong.
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