Before I implement greylisting, I wanted to get 909 feedback.
Does it have a pretty good success rate with limited false positives? How well does it work alone? And how well does it work when coupled with other proven spam fighting techniques? I've been skimming through the projects on this URL http://projects.puremagic.com/greylisting/links.html (and paying special attention to this Exchange 2003 project: http://www.grynx.com/projects/greylist/)
