Blocks registrations, WooCommerce checkouts, and comments that use disposable (throwaway) email addresses, with custom block and allow lists.
Alternatives to Spam Defender – Email Blocker
Plugins below are selected for functional relevance and current directory signals. Active-install counts do not affect this ranking.
Relevant replacements
WordPress plugins with similar use cases
Compatibility and update metadata provide context, not a quality guarantee. Review each plugin’s details for your site.
Refuses sign-ups with an email address that cannot receive emails or is disposable, and flags WooCommerce orders whose email has the same problem.
Titanium Site Watch – Website Uptime Monitoring & Downtime Alerts with Health Checks for WooCommercev1.0.8
Website uptime monitoring, downtime alerts and an 11-check WooCommerce Health diagnostic with store health alerts.
Reliable WordPress email delivery with multiple providers, two connections, Return Path, Reply-To and visual AND/OR routing.
Reoon Email Verifierv2.1.2
Safeguard your online forms against invalid, temporary, disposable, and harmful email addresses with real-time verification.
Restrict WordPress user registration to allowed email domains, block spam signups, and secure WooCommerce, LearnDash, and form registrations.
BounceLens Email Checkv1.0.0
Stops fake, mistyped and throwaway email addresses in registration, comment, WooCommerce and contact forms. No account, no API key.
Blocks disposable email at registration and comments to stop fake accounts and registration spam. 8,201 domains bundled, no API, no signup.
Verify customer emails before login or checkout. Secure WooCommerce registration verification—block fake accounts and spam.
Block disposable email, temporary email and fake or mistyped addresses at WooCommerce checkout, before the order is placed.