Best spam registration plugins for WordPress
The most popular spam registration plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Wonderful Disposable Email Blocker leads with 10+ active installs, ahead of Stackedboost Signup Guard (fewer than 10) and MailProbe (fewer than 10). All 3 plugins tagged “spam registration” are below, with figures from WordPress.org that update every day.
Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.
Research this niche or see all plugins.
Top 3 spam registration plugins
- 1.
Wonderful Disposable Email BlockerThe most installed spam registration plugin, with 10+ active installs. No reviews yet, updated 1 month ago.
- 2.
Stackedboost Signup GuardFewer than 10 active installs. No reviews yet, updated 1 month ago.
- 3.
MailProbeFewer than 10 active installs. No reviews yet, updated 5 days ago.
All 3 plugins tagged “spam registration”
Wonderful Disposable Email Blocker
Up in the last 7 days:279#31,224by wonderfulplugins1 month ago
Blocks registrations, WooCommerce checkouts, and comments that use disposable (throwaway) email addresses, with custom block and allow lists.
- Installs
- 10+
- Rating
- –
- Downloads
- 3/day
Stackedboost Signup Guard
Up in the last 7 days:15,293#57,671by stackedboost1 month ago
Blocks disposable email at registration and comments to stop fake accounts and registration spam. 8,201 domains bundled, no API, no signup.
- Installs
- <10
- Rating
- –
- Downloads
- 3/day
MailProbe
Up in the last 7 days:12,072#61,163by MailProbe5 days ago
Refuses sign-ups with an email address that cannot receive emails or is disposable, and flags WooCommerce orders whose email has the same problem.
- Installs
- <10
- Rating
- –
- Downloads
- 11/day