Email validation for WordPress forms.
A free plugin that checks submitted email addresses in supported WordPress forms. Reduce submissions with invalid and disposable addresses.
Install from WordPress.orgFree on WordPress.org. Updates arrive in your WordPress admin; verification uses your purchased credits.
One extra
check.
Contact Form 7, WordPress registration, WooCommerce, Gravity Forms, WPForms and Ninja Forms are included in the plugin integrations.
Confirm compatibility with your form and settings on a test site first.
Install and connect.
- In WordPress, open Plugins → Add New and search for “ZBounce Email Validator”.
- Click Install Now, then Activate.
- Open Settings → ZBounce Email Validator. Review the supported form options and run a test submission.
- Paste the API key you received after payment and accept the service agreement. Automatic form checks are a separate switch; without a key the plugin sends no external requests.
What it checks.
Address format, domain mail records, mailbox responses, disposable domains and catch-all signals. Verification helps with email quality; it does not replace broader bot or spam protection.
The plugin sends submitted addresses to the ZBounce API. Review your privacy notice and the processing information before enabling it.
From a real deployment.
In the owner’s feedback-form deployment, spam submissions dropped to zero after using the plugin. This is one observed case; no universal spam-blocking guarantee or measured time period is claimed.