Spam Challenge-Response system

[Shane Hathaway]

Jessie Morris wrote:
> I was wondering if there was any way that I could make my mail system respond 
> to emails received with a link that says something to the effect of, "If you're 
> a human, click here to be allowed." I've done some searching on Google, and 
> haven't found a really good system. Ideas?

Have you set up Postgrey?  For the price of an occasional delay, 
Postgrey reduces my spam from hundreds per day to around 5 a day.  DSpam 
handles the rest.

Shane