Filter Spam on forwarded mail

Hi All,

I use qmail/vpopmail and have a Spamassassin in front for mail scanning.

For the local postboxes I use mailfilter to sort mails marked as Spam 
into special folders. Is there a way for a similar approch on forwarded 
mail (e.g. sending them to /dev/null...).

My Problem is that a lot of mass mailings get thru the SA being tagged 
and then forwarded to the final receipient, but blocked by their 
mailserver. Result is a lot of backscatter/undeliverable mail (which put 
me on a blacklist last week).

best regards

Oliver

-- 
Protect your environment -  close windows and adopt a penguin!