Only allow users with email addresses not on the domain blacklist to register in BuddyPress.

Enhance Elementor Pro Forms with advanced email filtering capabilities including global blocklists/whitelist and per-form controls.

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.

Block unwanted email registrations on your site with this email blacklist plugin. Protect your site by preventing spam sign-ups.