This plugin protects your WPMU signup process against spambots with a simple math question.
As of April 2026, WPMU Block Spam By Math is a WordPress spam plugin with 10 active installations and a 0/5 rating0. It has been downloaded 4.3K+ times in total. Requires WordPress false+ and PHP false+. Available on WordPress.org since 2010. Last updated 15 years ago — may have compatibility concerns. Top alternative: Akismet Anti-spam: Spam Protection.
This plugin protects your WPMU signup process against spambots with a simple math question. This plugin is based on the Block-Spam-By-Math plugin created by Alexander Grau. This only protects the new blog creation process and the new user creation process. If you wish to have individual blog protection use the regular Block-Spam-By-Math plugin on individual blogs.
For additional help check the plugin page at: http://www.jamespegram.com/wpmu-block-spam-by-math/
| WordPress | false+ requiredTested up to 3.0.5 |
| PHP | false+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.