Stops form spam without CAPTCHAs, using hidden fields, JavaScript and timing checks. Works with core forms, WooCommerce and popular form plugins.
Alternatives to lxix Email Firewall
Plugins below are selected for functional relevance and current directory signals. Active-install counts do not affect this ranking.
WordPress plugins with similar use cases
Compatibility and update metadata provide context, not a quality guarantee. Review each plugin’s details for your site.
Get an alert when your site silently stops delivering leads: broken forms, failing email, unusual silence or a site that is down.
Website uptime monitoring, downtime alerts and an 11-check WooCommerce Health diagnostic with store health alerts.
Self-contained email validation and spam protection for WordPress forms. Syntax + optional mailbox checks, honeypot, rate limiting and CAPTCHA.
Validate email addresses in real-time on WordPress forms using the Truelist API. Block invalid, disposable, and role-based emails.
Reliable WordPress email delivery with multiple providers, two connections, Return Path, Reply-To and visual AND/OR routing.
Stop fake, disposable and mistyped email addresses and invalid phone numbers on Contact Form 7, WPForms, Gravity Forms and WordPress registration.
Simple contact forms that are easy to set up and style, accessible by default, with effective built-in spam protection.
Contact form not sending email? Leadkeel saves every lead, logs each notification email and warns you the moment one fails.
Real-time email verification for WordPress. Block invalid, disposable, and risky emails before they enter your forms, lists, or checkout.