On Ter, 2007-02-20 at 15:07 -0600, Jacob Yocom-Piatt wrote: > i have seen a number of spammer outfits doing this: following the RFC > and retrying until the spam gets though and they're whitelisted, then > they're free to push crap through. any thoughts on how to best combat > this behavior besides spamassassin + amavisd (i.e. wasting cpu cycles > and bandwidth)?
At the risk of being flogged to death for posting YA post to this thread, if you think spam protection ends with greylisting, you're asking for it :) You could, for instance, use greylisting as first policy, then blacklist, then spam checkers, anti-virus checkers, wotnot checkers, etc... Then, you could also have some intelligent algorithms at the client side (bayesian, whatever...) Rui -- + No matter how much you do, you never do enough -- unknown + Whatever you do will be insignificant, | but it is very important that you do it -- Gandhi + So let's do it...? [demime 1.01d removed an attachment of type application/pgp-signature which had a name of signature.asc]
