David B Funk wrote:
I'm seeing a new spam varient that is clearly designed to get past SURBL. It is an HTML message that contains many (50~100) 'invisible' links; links that have no target text, just: <A href="http://garbage.sitename.tld"></A>
Is it time to create rules to penalize large numbers of 'invisible' links?
it would also be good to discard pointless links before querying surbl's, not sure how easy that is going to be to code though