Title: turboSMTP Email Validator
Author: turboSMTP
Published: <strong>February 21, 2025</strong>
Last modified: July 27, 2026

---

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# turboSMTP Email Validator

 By [turboSMTP](https://profiles.wordpress.org/turbosmtp/)

[Download](https://downloads.wordpress.org/plugin/turbosmtp-email-validator.1.9.2.zip)

 * [Details](https://wordpress.org/plugins/turbosmtp-email-validator/#description)
 * [Reviews](https://wordpress.org/plugins/turbosmtp-email-validator/#reviews)
 *  [Installation](https://wordpress.org/plugins/turbosmtp-email-validator/#installation)
 * [Development](https://wordpress.org/plugins/turbosmtp-email-validator/#developers)

 [Support](https://wordpress.org/support/plugin/turbosmtp-email-validator/)

## Description

Validates email addresses using the turboSMTP API in:
 – WooCommerce registration
and checkout – Contact Form 7 – WpForms – WordPress comments and registration – 
MC4WP – Gravity Forms – Elementor Forms

The turboSMTP Email Validator for WordPress plugin ensures that email addresses 
provided during user registration and checkout are valid. It uses the turboSMTP 
API to perform the validation, enhancing the quality of email addresses collected
and reducing the number of invalid emails in your database.

### Features

 * Validates email addresses in different forms (WooCommerce, CF7, WpForms, WordPress
   comments and registration, MC4WP, Gravity Forms, Elementor Forms)
 * Uses the turboSMTP API for email validation.
 * Stores validated email addresses in a custom database table.
 * Provides an admin settings page to configure API keys and enable/disable the 
   service.
 * Displays a list of validated email addresses in the admin area.
 * Bypass validation for individual email addresses or entire domains using the 
   whitelist functionality.

### Usage

 * Enable turboSMTP Email Validator: Go to “Settings” > “turboSMTP Email Validator”
   and check the “Enable Email Validation” option.
 * Set API Keys: Enter your turboSMTP consumerKey and consumerSecret in the provided
   fields.
 * View Validated Emails: Check the list of validated emails in the “Validated Emails”
   section on the settings page.

## Screenshots

[⌊Email Validator General Settings⌉⌊Email Validator General Settings⌉[

Email Validator General Settings

[⌊Validation Settings⌉⌊Validation Settings⌉[

Validation Settings

[⌊Test Validator⌉⌊Test Validator⌉[

Test Validator

[⌊History Table⌉⌊History Table⌉[

History Table

[⌊History Table Validation Details⌉⌊History Table Validation Details⌉[

History Table Validation Details

[⌊Login using API Keys⌉⌊Login using API Keys⌉[

Login using API Keys

[[

## Installation

 * Upload the plugin files to the /wp-content/plugins/turbosmtp-email-validator 
   directory, or install the plugin through the WordPress plugins screen directly.
 * Activate the plugin through the ‘Plugins’ screen in WordPress.
 * Go to “Settings” > “turboSMTP Email Validator” to configure the plugin settings.

## FAQ

### What happens if the email validation fails during registration or checkout?

If the email validation fails, an error message will be displayed, and the user 
will be prompted to enter a valid email address.

### Can I filter by status and sub_status?

Yes, you can do it. You to use the `turbosmtp_email_validator_status_ok` filter 
hook. Below you can see a useful code snippet as example of use (you must to put
this in a custom plugin or the `functions.php` file of your active theme):

    ```
    // Filter by status and sub_status
    function turbosmtp_custom_email_validator_status_ok(
        $value,
        $status,
        $sub_status
    ){
        if (
            $status === 'do_not_mail' &&
            $sub_status === 'role_based_catch_all'
        ){
            return true;
        }
        return $value;
    }

    add_filter('turbosmtp_email_validator_status_ok', 'turbosmtp_custom_email_validator_status_ok',10, 3);
    ```

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“turboSMTP Email Validator” is open source software. The following people have contributed
to this plugin.

Contributors

 *   [ turboSMTP ](https://profiles.wordpress.org/turbosmtp/)
 *   [ dueclic ](https://profiles.wordpress.org/dueclic/)

“turboSMTP Email Validator” has been translated into 1 locale. Thank you to [the translators](https://translate.wordpress.org/projects/wp-plugins/turbosmtp-email-validator/contributors)
for their contributions.

[Translate “turboSMTP Email Validator” into your language.](https://translate.wordpress.org/projects/wp-plugins/turbosmtp-email-validator)

### Interested in development?

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

## Changelog

#### 1.9.0

 * better error handling in case of API failures

#### 1.8.0

 * changed filter turbosmtp_email_validator_status_ok (now accepts sub_status as
   well)

#### 1.7.0

 * added whitelist

#### 1.6.0

 * i18n fixes

#### 1.5.0

 * Added missing translations

#### 1.4.0

 * Allow custom error message translation with WPML or Polylang

#### 1.3.0

 * Fix in threshold

#### 1.2.0

 * Added threshold for avoid multiple validations
 * Test validator loading improvements
 * Responsive CSS improvements in admin area

#### 1.1.0

 * Handle form_id in Elementor Forms, Contact Form 7, WordPress Comments

#### 1.0.0

 * First public release

## Meta

 *  Version **1.9.2**
 *  Last updated **13 hours ago**
 *  Active installations **10+**
 *  WordPress version ** 6.0 or higher **
 *  Tested up to **7.0.2**
 *  PHP version ** 7.0 or higher **
 *  Languages
 * [English (US)](https://wordpress.org/plugins/turbosmtp-email-validator/) and 
   [Italian](https://it.wordpress.org/plugins/turbosmtp-email-validator/).
 *  [Translate into your language](https://translate.wordpress.org/projects/wp-plugins/turbosmtp-email-validator)
 * Tags
 * [email tester](https://wordpress.org/plugins/tags/email-tester/)[email validation](https://wordpress.org/plugins/tags/email-validation/)
   [email validator](https://wordpress.org/plugins/tags/email-validator/)
 *  [Advanced View](https://wordpress.org/plugins/turbosmtp-email-validator/advanced/)

## Ratings

No reviews have been submitted yet.

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

[See all reviews](https://wordpress.org/support/plugin/turbosmtp-email-validator/reviews/)

## Contributors

 *   [ turboSMTP ](https://profiles.wordpress.org/turbosmtp/)
 *   [ dueclic ](https://profiles.wordpress.org/dueclic/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/turbosmtp-email-validator/)