Valid Email Verification for Contact Form 7
Adds duplicate email blocking and verification to Contact Form 7 to improve form security and reduce spam.
Plugin info
Maintenance & Compatibility
Maintenance score
Actively maintained • Last updated 76 days ago
Is Valid Email Verification for Contact Form 7 abandoned?
Likely maintained (last update 76 days ago).
Compatibility
Similar & Alternatives
Explore plugins with similar tags, and compare key metrics like downloads, ratings, updates, support, and WP/PHP compatibility.
Description
Valid Email Verification for Contact Form 7 is a lightweight plugin that ensures users submit valid and unique email addresses in Contact Form 7 forms.
It helps prevent duplicate and fake email submissions, improving the quality of your form leads and reducing spam.
This plugin is independently developed and is not affiliated with or endorsed by the Contact Form 7 team.
Features
- Block duplicate email submissions in Contact Form 7
- Add a verification step to validate email addresses before processing
- Secure codebase (prepared statements, sanitization, escaping, caching)
- Lightweight, no external API required
- Fully compatible with the latest WordPress and Contact Form 7 versions
Assets
Place the following files in the plugin SVN /assets/ directory (not in trunk):
Screenshots:
– screenshot-1.png (1200×900) — Duplicate email validation error
– screenshot-2.png (1200×900) — Settings/admin example (optional)
Banners:
– banner-772×250.png
– banner-1544×500.png
Icons:
– icon-128×128.png
– icon-256×256.png
Installation
- Upload the plugin files to the
/wp-content/plugins/valid-email-verification-cf7/directory, or install it directly via the WordPress plugin installer. - Activate the plugin through the Plugins menu in WordPress.
- The plugin works automatically with your Contact Form 7 forms — no extra configuration needed.
Frequently Asked Questions
Yes. This plugin is specifically built for Contact Form 7 and requires it to be installed and active.
When a user submits a form, the plugin validates the email, checks it against stored submissions, and prevents the submission if the email was used before.
Yes. If the user uninstalls the plugin (not just deactivates), the plugin removes its custom database table and options.
Review feed
Changelog
1.0.1
- Fix: Properly block duplicate email submissions before sending mail.
- Fix: PHP 8.2 “dynamic property” notice resolved by declaring class properties.
- Fix: Database query now uses
$wpdb->get_var()withprepare()for SELECT COUNT(*). - Tweak: Improved sanitization, escaping, and code cleanup.
1.0
- Initial release.
- Added email verification for Contact Form 7.
- Implemented security improvements.

