On Mon, Jul 31, 2006 at 03:45:05PM -0500, Logan Shaw wrote: > On Mon, 31 Jul 2006, jdow wrote: > >Break the image into pieces. If too many pieces match on MD5 sum then > >you score it higher than if lots of the image is different. But that > >can get tedious to say the least. > > And there's also an easy way around it. Simply add noise to > the image.
Then start using techniques that compare similarities of images. There is probably not ever going to be a technique that can completely defeat spam without drastically changing the way e-mail and Internet works. All we can do is to try to stay ahead of the spammers. If that wasn't the case, there would never be new rules coming out for SpamAssassin. But I find it amusing that people here are more interested in telling spammers how they can defeat an algorithm instead of the other way around. 99% of the techniques in SpamAssassins hvae an easy workaround - does that stop anybody from using them? Tim
