Prevent people from registering with emails that contain a subdomain to help reduce spam.
Monkey Trapped Spam is a WordPress plugin that automatically places the IP address of spam comments in the local comments blacklist.
Unspam makes it harder for spammers to automatedly send spam to your blog by changing the names of the fields in the comment forms.
Post Filter allows you to replace all bad words with good ones in all post types with simple settings and easy to use interface.
Yes, it actually works. Waste Spammers' time. Make Them helpless.
Anti-spam plugin - An advanced and free WP spam filter which protects your blog from 100 % of comment spam.
Show spam statistics on your blog. (Now merged into SpamTask)
The best captcha alternative. Accessible, Mobile-friendly, and Retina-ready!
Block WordPress comment spam, trackback spam, and pingback spam through intelligent analytics instead of interactive challenge response tests.
If you are irritated of all the SPAM that clusters your inbox then, this is the most suitable plugin for you.
Very effective anti-spam plugin that eliminates comment spam, and registration spam. Combines many effective methods for identifying spammers and keeping them off your site. THe plugin is designed to be very light weight so it will not interfere with the operation of your website. Easy to install and default options work perfectly on most sites. Will not lock you out. No Captchas needed. Works with JetPack Protect.