Prevent people from registering with emails that contain a subdomain to help reduce spam.

An informant that works for you.

The most advanced protection against sploggers and spam users registration, is fully WordPress,WordPress MU ,BuddyPress and bbPress 2.0 compatible

Simple, lightweight, no captcha, no configuration. Just works.

A powerful spam protection plugin for Contact Form 7 that blocks bots, spam submissions, VPN users, repeated attempts, and automated attacks — without using CAPTCHA.