I think this is an easy question, but I haven't been able to find an answer. If I'm using spamassassin 3, invoking it via procmail as just 'spamassassin' and testing for the result, and I trust that any message carrying a URL that's listed on surbl.org or spamhaus.org is 100% spam, what file(s) would I edit and how?
In other words, I've never seen a false positive on either of those BLs, but I'm seeing spam that meets those tests and is still weighted less than 5. I want to change that.