Stop Spammers is an aggressive website spam defence against comment spam and login attempts.
It is capable of performing more than 20 different checks for spam and malicious events and can block spam from over 100 different countries.
There are 12 pages of options that can be used to configure the plugin to your needs.
In cases where spam is detected, users are offered a second chance to post their comments or login. Denied requests are presented with a captcha screen in order to prevent users from being blocked.
The captcha can be configures as OpenCaptcha, Google reCaptcha, or SolveMedia Captcha. The Captcha will only appear when a user is denied access as a spammer.
The plugin is designed to work with other plugins like Gravity Forms. It looks at any FORM POST such as BBPress or other addons that use access controls.
THe plugin implements a fuzzy search for email and user ids in order to check for spam.
There are free add-ons available that check some special cases.
The Stop Spammers Plugin has been under development since 2010.
Thank to Dealwap