The PHP Spam Poison is a fake-Page Generator that simulates long lists of fake email addresses and links to more fake generated pages. So, when spam-robots (spam spiders) try to Harvest email addresses from your website, they get hundreds or thousands of fake email addresses, effectively poisoning their databases with useless data
It uses PHP, so no CGI access is needed.
Fast and lightweight.
Highly configurable.
Can be included by others PHP pages.
Require software available in most hosting services.
Doesn't require a SQL database.
Works in Linux/Unix and Windows servers (with IIS or Apache).
GPL license (open-source).
Simple to install.