Chipping in my two cents (Hi, I'm back from vacation!) I'm waiting for
something like BODYTEXT instead of BODY so that I can stop getting false
positives from short sequences showing up in attachment encoding.

I had to stop trying to filter:

grx
grx2
t1t
MLM
d0rm
/ad
/ads

because they came up an astonishing number of times in the BASE64 encoding
of normal attachments.

Pardon me for putting words in his mouth, but Scott's stock answer has been
that this has been noted as a feature request but would mean a significant
effort for Declude to write a full MIME parser to include in their products.

Andrew 8)

-----Original Message-----
From: Matthew Bramble [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, September 09, 2003 4:56 PM
To: [EMAIL PROTECTED]
Subject: Re: [Declude.JunkMail] Detecting gibberish


Thanks Scott, that explains pretty much everything.

I'm sure you are well aware of the problem with gibberish in spam, 
especially if you are moving towards Bayes filtering with Declude.  Is 
it possible to come up with a filter like say BODYTEXT that processes 
just decoded text and ignores anything in HTML tags and attachments?

-----

Markus, and a question for you about SpamChk...can your app be limited 
to just the decoded non-HTML text or does it only do it all ways?  It 
would appear that this would be a reasonable alternative if so.

Thanks,

Matt



R. Scott Perry wrote:

>
>> Regarding the gibberish detection and decoding...I am running the 
>> most recent version and have not disabled decoding, however the 
>> following test message gets a hit on [BODY   0   CONTAINS   qi] even 
>> though that string only appears in the link:
>
>
> Ah, I was mistaken.  What happens is Declude JunkMail checks against 
> *both* the original contents and the decoded contents.
>
>> I also found that the the Base64 encoded words that appear in a 
>> subject aren't getting found by my filters either.
>
>
> That is correct.  Declude JunkMail does not attempt to decode subjects 
> (which use a different encoding system than attachments).
>
>                                                    -Scott



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