[Spambayes] Unwanted stock solicitations

[Amedee Van Gasse]

On Thu, October 12, 2006 19:29, Calvin Veltman said:
> Hi,
>
> I've been getting lots of supposed scoops on cheap stocks (19 cents) which
> are supposed to skyrocket tomorrow. Spambayes had not been able to filter
> these out although it has done wonders with Viagra, cheap drugs, etc. So I
> decided to reconfigure the software by accumlating hundreds of Emails with
> this cheap stock junk included. After retraining, it has still not been
> able
> to detect the junk stock emails. Any suggestions?

I am a native Dutch speaker so 99% of emails I get in English are spam,
while 99.999% Dutch emails are ham. That could also explain why spambayes
catches the junk stocks for me.

Are they text-only, html or image mails?

I have seen a lot of cheap stock spam lately, with inline images and no
text at all. There isn't much to train on... spambayes can't read images.

I have explored the possibility of ocr-ing every incoming image so
spambayes can generate more trainable tokens, but it doesn't seem worth
the effort or the overhead. (see mailing list archive a couple of months
ago)
If you're good with linux shell scripting/procmail/python, you can try
some experiments yourself.

-- 
Amedee Van Gasse