This plugin hasn’t been updated in over 2 years. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

Ultimate Email Validator – Disposable and Temporary Email Address Blocker


Ultimate Email Validator make an email validation process using a 100% Free API to detect Disposable and Temporary Email Address to make your Database clean with real customers.

Have you ever been bothered with thousands of registration using fake email addresses that you cannot even reach them? and you discovered that you just have a few real customers? Those registration done by Disposable Email Address DEA which is a service that allows to receive email at a temporary address that self-destructed after a certain time elapses. It is also known by names like: Temporary, Throwaway, Fake or Trash Email.

Have you tried to found a free way to detect and block registration with DEA and you have shocked with dozens of plugins using Paid APIs Only? Unfortunately that’s the truth, But a great developer here SOLYD make a completely free API to detect the fake email addresses.

Ultimate Email Validator uses the SOLYD free API Block Temporary Email to detect and stop the following actions registration, update user profile, post comments or using contact forms using temporary or disposable email addresses to keep your database clean with real customers that you can reach them.

Validate Registration Forms

Ultimate Email Validator detect email fields in WordPress, BuddyPress and WooCommerce registration forms as well as detect email field in the Update User Profile page to prevent users from modifying his real email later.

Validate Forms

You can use Ultimate Email Validator also to validate email fields in the Comment Box in the posts or pages as well as validate the most popular contact forms like Contact Form 7, MailChimp, Ninja Forms and Gravity Forms

Ultimate Email Validator Compatible With

  • BuddyPress
  • WooCommerce
  • MailChimp
  • Contact Form 7
  • Ninja Forms
  • Gravity Forms

Display a Custom Message

Ultimate Email Validator comes with an easy and stylish options panel allows you to manage the validation process as you wish by disabling or enabling validations for each registration or contact form as well as editing the custom message for each form, So the message appear in the registration will be different than this one appears in contact forms and the message appear in the Ninja Forms different than the MailChimp’s one.


  • Options Panel
  • Custom Message Examples
  • WordPress Single Site Registration
  • WordPress Multisite Registration
  • BuddyPress Registration
  • WooCommerce Registration
  • Post a Comment
  • Updating User Profile from WordPress Dashboard
  • Updating User Profile using BuddyPress
  • Updating User Profile using WooCommerce
  • Using Contact Form 7 Plugin
  • Using Ninja Forms Plugin
  • Using MailChimp Subscribe form


This section describes how to install the plugin and get it working.

  1. Upload ultimate-email-validator to the /wp-content/plugins/ directory.
  2. Activate the plugin through the ‘Plugins’ menu in WordPress.
  3. If you use a Multisite WordPress then you MUST activate the plugin as a network plugin because it’s a Network Only plugin.
  4. Open the Ultimate Email Validator settings from the WordPress dashboard, Customize and save it.


Should I register in the API?

No, Block Temporary Email is a free API does not require registration.

How many allowed requests for email addresses per month?

Unlimited, Again We are using a free API support thousands requests per minute,
So feel free to support us by donation link Buy me a Coffee and be a sponsor for Block Temporary Email API to make the Internet a better place.

Will the validation process detect 100% of disposable emails?

Unfortuanetly No, Since there’s dozens of fake email generators appears every week and since it’s a free API it needs time and work to modify the fake providers database everyday,
So it’s hard to catch 100% of fake emails but it’ll reduce the registration, comments and using contact forms with DEA.

Can I display a custom message instead of [Invalid Email] message?

Yes, You Can. take a look at the screenshots images below, You will notice that you can modify your custom message for Registration, Update Profile, and Contact Forms (Different Message for Each One)
But for some limitation in some forms like (WordPress Comment Box) you cannot.

Is the plugin is secure?

This plugin is highly secured and we have implemented all the standard security features. Plus, we have used official WordPress safe requests funtions so all the forms is secure.

Will you save my clients emails?

Of course No, This is called hijacking which is prohibited by WordPress itself.


There are no reviews for this plugin.

Contributors & Developers

“Ultimate Email Validator – Disposable and Temporary Email Address Blocker” is open source software. The following people have contributed to this plugin.


Change log


  • Initial Release


  • Fixed: Check Server Response
  • Fixed: Check status code 400 in fail