Plugin Tag፥ spambot
-
PRyC WP: AntiSPAM (without CAPTCHA)
Block SPAM without any type of CAPTCHA – plugin add "HoneyTrap" (and a few other tricks) for comment form to block SPAMbots.
-
Damn Spam
Damn Spam is a lightweight anti-spam plugin. Currently highly opinionated – it automatically sends any new comments with links to your spam inbox