Block specific email addresses from using your WordPress site. Stop fake orders, spam registrations, and unwanted comments.
As of April 2026, Spam Defender is a WordPress block plugin with 10 active installations and a 0/5 rating0. It has been downloaded 306 times in total. Requires WordPress 6.0+ and PHP 7.4+. Available on WordPress.org since 2025. Top alternative: Spectra Gutenberg Blocks – Website….
= Spam Defender – Email Blocker helps you reduce spam and fake activity by blocking specific email addresses or domains.
Once blocked, users with those emails will not be able to: =
This plugin is lightweight, easy to use, and comes with an admin settings page where you can manage blocked emails/domains.
Features:
* Block emails globally across WordPress.
* Block on login, registration, comments, and WooCommerce checkout.
* Manage blocked emails from settings page.
* Search blocked email lists.
* Prevents fake orders and spam signups.
| WordPress | 6.0+ requiredTested up to 6.9.4 |
| PHP | 7.4+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.