Handling bounced spam messages

Tom Anderson tanderso at oac-design.com
Mon Jun 13 19:45:22 CEST 2005


----- Original Message ----- 
From: "Mark Constable" <markc at renta.net>
> I should have mentioned that I do want to see some of these
> messages, just not the ones that are obviously bounces from
> spam, ie; they need to be filtered somehow, preferably not
> by a human. As s. keeling responded, I'll look into some
> specific and targetted pre-bogo filtering but between that
> and using stripsearch I may as well use the likes of
> spamasssasin and be done with it (I presume, never used it).

I train the spam bounces as spam and the ham bounces as ham.  To my 
knowledge, no legitimate bounce has been filtered, and I only rarely receive 
a spam bounce anymore... but I attributed that mostly to improvements in 
mail software (qmail et al) across the internet, not by anything I did.  Are 
other people still getting lots of spam bounces?  The main reason why I 
think training them appropriately works well is because your own server 
tokens should show up more in the legitimate bounces.  Spamitarium helps 
with this too by removing forged "received" lines.  Those tokens common to 
both ham and spam bounces should probably be relatively neutral and thus 
contribute neither way.

Tom




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