On 7/17/07, Jonathan Duncan <jonathan at bluesunhosting.com> wrote: > > Are you willing to try a "challenge-response" option? > > http://en.wikipedia.org/wiki/Challenge-response_spam_filtering I discourage the use of C-R filters. C-R is considered by many to be a "cure" far worse than the original disease. Google "challenge response harmful" to see why. Chris