Best block email plugins for WordPress
The most popular block email plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Gravity Forms Email Blacklist leads with 10K+ active installs, ahead of Gravity Forms Block Email Domains (1K+) and Blacklist Unwanted Email (90+). All 5 plugins tagged “block email” 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 5 block email plugins
- 1.
Gravity Forms Email BlacklistThe most installed block email plugin, with 10K+ active installs. Rated 4.3 from 15 reviews, updated 5 months ago.
- 2.
Gravity Forms Block Email Domains1K+ active installs. Rated 4.1 from 9 reviews, last updated 2 years ago. Tested only up to WordPress 6.7.11.
- 3.
Blacklist Unwanted Email90+ active installs. Only 1 review so far, last updated 7 years ago. Tested only up to WordPress 5.3.27.
- 4.
Block domain email addresses for Contact Form 760+ active installs. No reviews yet, last updated 3 years ago. Tested only up to WordPress 6.3.14.
- 5.
Wonderful Disposable Email Blocker10+ active installs. No reviews yet, updated 1 month ago.
All 5 plugins tagged “block email”

Gravity Forms Email Blacklist
Down in the last 7 days:3#2,047by CrossPeak5 months ago
Add-on for Gravity Forms to create a Blacklisting of specific emails or domains for the Email input field to throw a validation error or mark as spam.
- Installs
- 10K+
- Rating
- 4.3(15)
- Downloads
- 61/day

Gravity Forms Block Email Domains
Down in the last 7 days:65#6,109by GravityKit2 years ago
Easily set a list of email domains to block on email fields in Gravity Forms.
- Installs
- 1K+
- Rating
- 4.1(9)
- Downloads
- 12/day

Blacklist Unwanted Email
Up in the last 7 days:114#16,844by abahalkar7 years ago
This is a free add-on plugin for Formidable Forms , which validates the email field and restrict unwanted email submission as well as allowed only bus …
- Installs
- 90+
- Rating
- 5.0(1)
- Downloads
- 11/day

Block domain email addresses for Contact Form 7
Up in the last 7 days:200#20,027by apasionados3 years ago
Blocks spammers sending contact forms using an email address from the domain of the WordPress installation in Contact Form 7.
- Installs
- 60+
- Rating
- –
- Downloads
- 0/day

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