Anti-Spam SMTP Proxy Server implements multiple spam filters
Server-side web application for detecting and blocking spam
Anti Spam SMTP Gateway
CIDRAM: Classless Inter-Domain Routing Access Manager.
Google Apps Script to send third party recruiter email to spam
Open-Source Phishing Framework
An easy-to-use anti-spam email gateway
Mod of the original Faucet-in-a-Box faucet PHP script
Keep your Ad-Blocker active, when you visit a website and it asks you
Realtime Anti-Phishing Training Online Resource
Catch-a spammer with a CAPTCHA.
ASP or PHP Captcha, completly configurable, with prevalidation