Re: EXTRA_MPART_TYPE redux..

[Justin Mason <jm...@jmason.org>]

Michael Scheidell writes:
> http://markmail.org/message/w6scp6xqlkdgrh3b?q=EXTRA_MPART_TYPE&page=1&refer=w6scp6xqlkdgrh3b
> 
> 263 google hits for EXTRA_MPART_TYPE. all someone needs to so is have an 
> inline image, and pass it through a microsoft exchange server for this 
> rule to hit.
> 
> many (many, many) suggestions going way back to 2005: and sa3.15:
> 
> https://issues.apache.org/SpamAssassin/show_bug.cgi?id=5110
> 
> so,  I for one will set score to 0 in local.cf.. waited and waited for 
> the fix for 3  years
> (yes, I know, rfc compliant doesn't mean != spam), but a rule that will 
> hit ANY exchange processed email with an inline image in the background 
> is not helpful.

it has a score of 1.0.  that's about typical for a rule that has
a 99.4% hitrate against spam, but still hits quite a lot of spam.

FWIW, the more ham samples we have, the less likely FPs will be...

--j.