Pete, even your message had a chaset header:

Content-Type: text/plain; charset=us-ascii

I think you'll generate more FP's if you do something like that than FN's
you might have now. Aren't there spamassassin config files that detect this
spam?


Met vriendelijke groet,

ing. Michiel Prins
SOS Small Office Solutions / REJECT
Wannepad 27
1066 HW Amsterdam
tel. 020-4082627
fax. 020-4082628
[EMAIL PROTECTED]


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Pete McNeil
Sent: vrijdag 20 augustus 2004 4:58
To: Jorge Asch
Subject: Re[2]: [sniffer] Charset

On Thursday, August 19, 2004, 10:45:37 PM, Jorge wrote:

JA> Could a filter be created that will tag as spam any messages that 
JA> contaning NON-ascii characters? I mean allow only CHRS 1 through 255.

JA> I believe this fill filter out all these foreign character sets, and 
JA> let through regular old and plain messages through...

JA> Of course such a rule will only apply for most of us on the western 
JA> hemisphere...

In theory this could be done, but it would be a tricky gadget - probably
best done as something programatic... There are a lot of opportunities for
false positives.

I will think about this...

Then again - why not simply block on anything that says charset= ? If it's
plain old ascii, then there's no need for charset. (Lots of FPs with this,
but then I would never use a filter like that... It might be very close to
what you are looking for.

The other way to do it would be to build patterns that match all of the
known character sets -- or at least the majority. That would be a chunk of
work but doable - especially with a few well placed wildcards and a good
comprehensive list.

_M



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