http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4725





------- Additional Comments From [EMAIL PROTECTED]  2005-12-08 21:14 -------
'there is no reason for spam
to have characteristic image sizes or color maps or use of colors.'

actually, there was; certain spammers would use certain sizes, colors, etc. in
their campaigns.

'Those are
easily changed by spammers to arbitrary values if we do start looking for
charasteristic values'

and there's the rub.  In my recent testing (at $DAYJOB), they've been doing a
lot of this.  I doubt these features are reliable indicators anymore against
current spam. :(



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