Block spam in WordPress with this free to use plugin. Block IP addresses, login logging and block referral spam for Google Analytics. With blacklist.
Comment Spam Prevention without CAPTCHA. No CAPTCHA, No SPAM!
Comment spam prevention without moderation, captchas or questions
WangGuard - MailPoet Connector is a plugin for connect WangGuard plugin with MailPoet.
minotaur - Rid the internet of text CAPTCHAs!
This plugin is a simple captcha that appears when an unregistered user try to register or to leave a comment.
Add Hashcash spam protection to Contact Form 7.
minteye - STOP SPAM, MAKE MONEY!