Alex Woick wrote:
If you feed third-party backscatter as spam, you let the Bayes filter know that the standard bounce texts like "...unable to deliver..." is a spam indicator.
... but if you feed in a few legitimate bounces as ham, the bounce text itself tends towards a neutral rating over time. The returned message ends up being the primary factor in Bayes scan results.
*shrug* Works For Me.
For better backscatter handling, look into the VBounce plugin of SpamAssassin. This is the short description:
*nod* I'm aware of that plugin (or ruleset, pre-3.1?). I've had no need of it so far because Bayes has been doing a good enough job.
-kgd
