On Sun, 2006-11-12 at 17:26 -0800, John Rudd wrote: > http://people.ucsc.edu/~jrudd/spamassassin/RelayChecker.tar
I've been running this for a few days now and am finding it to be pretty effective, especially against the bots that are producing all the image spam. Currently it's running about 87.55% hit rate with only two false positives so far (one a company on adsl, the other a mail server with no reverse DNS). Thanks, Derek
