BSK Forms Blacklist
This plugin helps you avoid spam submissions from Gravity Forms, Formidable Forms, WPForms, Contact Form…
[플러그인 태그:] email blacklist
CM Email Registration Blacklist and Whitelist
Protect your WordPress site from unwanted registrations and spam with custom blacklist and whitelist rules.
BP Blacklist Signup by Email Domain
User registration spam is prevalent in BuddyPress.