Title: Valid Email Verification for Contact Form 7
Author: Sabirul Islam
Published: <strong>Май 24, 2025</strong>
Last modified: Октябрь 16, 2025

---

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# Valid Email Verification for Contact Form 7

 By [Sabirul Islam](https://profiles.wordpress.org/mdsabir07/)

[Download](https://downloads.wordpress.org/plugin/valid-email-verification-cf7.1.0.1.zip)

 * [Details](https://os.wordpress.org/plugins/valid-email-verification-cf7/#description)
 * [Reviews](https://os.wordpress.org/plugins/valid-email-verification-cf7/#reviews)
 *  [Installation](https://os.wordpress.org/plugins/valid-email-verification-cf7/#installation)
 * [Development](https://os.wordpress.org/plugins/valid-email-verification-cf7/#developers)

 [Support](https://wordpress.org/support/plugin/valid-email-verification-cf7/)

## 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

## Screenshots

 * [[
 * Contact Form 7 showing the validation error when a duplicate email is submitted.
 * [[
 * Example admin settings panel (if applicable).

## Installation

 1. Upload the plugin files to the `/wp-content/plugins/valid-email-verification-cf7/`
    directory, or install it directly via the WordPress plugin installer.
 2. Activate the plugin through the **Plugins** menu in WordPress.
 3. The plugin works automatically with your Contact Form 7 forms — no extra configuration
    needed.

## FAQ

### Does this plugin require Contact Form 7?

Yes. This plugin is specifically built for Contact Form 7 and requires it to be 
installed and active.

### How does the email verification work?

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.

### Will the plugin delete stored emails on uninstall?

Yes. If the user uninstalls the plugin (not just deactivates), the plugin removes
its custom database table and options.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Valid Email Verification for Contact Form 7” is open source software. The following
people have contributed to this plugin.

Contributors

 *   [ Sabirul Islam ](https://profiles.wordpress.org/mdsabir07/)

[Translate “Valid Email Verification for Contact Form 7” into your language.](https://translate.wordpress.org/projects/wp-plugins/valid-email-verification-cf7)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/valid-email-verification-cf7/),
check out the [SVN repository](https://plugins.svn.wordpress.org/valid-email-verification-cf7/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/valid-email-verification-cf7/)
by [RSS](https://plugins.trac.wordpress.org/log/valid-email-verification-cf7/?limit=100&mode=stop_on_copy&format=rss).

## 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()` with `prepare()` for SELECT COUNT(*).
 * Tweak: Improved sanitization, escaping, and code cleanup.

#### 1.0

 * Initial release.
 * Added email verification for Contact Form 7.
 * Implemented security improvements.

## Meta

 *  Version **1.0.1**
 *  Last updated **6 months ago**
 *  Active installations **10+**
 *  WordPress version ** 6.0 or higher **
 *  Tested up to **6.8.5**
 *  PHP version ** 7.2 or higher **
 *  Language
 * [English (US)](https://wordpress.org/plugins/valid-email-verification-cf7/)
 * Tags
 * [contact form 7](https://os.wordpress.org/plugins/tags/contact-form-7/)[email verification](https://os.wordpress.org/plugins/tags/email-verification/)
   [form security](https://os.wordpress.org/plugins/tags/form-security/)
 *  [Advanced View](https://os.wordpress.org/plugins/valid-email-verification-cf7/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/valid-email-verification-cf7/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/valid-email-verification-cf7/reviews/)

## Contributors

 *   [ Sabirul Islam ](https://profiles.wordpress.org/mdsabir07/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/valid-email-verification-cf7/)

## Donate

Would you like to support the advancement of this plugin?

 [ Donate to this plugin ](https://profiles.wordpress.org/mdsabir07/)