Wordpress plugin that extends WP functionality with email validation.
That plugin integrates with:
- Core WP
- ACF Plugin
- Contact Form 7
- WooCommerce
- Elementor
- Mailpoet
Plugins add hook inside WP core that will reject low quality emails during processing. If you allow user registration at your site - it will be protected by MailCheck service, because it depends on WP Core.
ACF have special filed type email, and it will be additionally validated

If form have input with type email it will be validated.

User registration in WooCommerce also validated

AJAX form validation for Elementor based forms
Mailpoet forms validation