Clearout Email Validator


Clearout Email Validator plugin seamlessly integrated with all major forms to validate the user given email address in real-time. this will perform 20+ refined validation checks to determine the status of email address, this would help the email address capture process

  • To accept only valid email address
  • To accept only business/work email address
  • To prevent all fraudulent signups

This plugin requires an API token that can be found under Account page
– Login into Clearout Account -> Go to account -> Click on Profile -> Generate & Copy the API token.

If you are not having a Clearout account, please create an account with 500 FREE email validation credits! No Credit Card Required.

Supported Plugins

This plugin supports rich set of popular form-based plugins by listening to WordPress is_email() function

  • Contact Form
  • Gravity Forms
  • WooCommerce
  • MailChimp
  • Ninja Forms
  • Formidable forms
  • Profile Builder
  • Ultimate Member registration form
  • Users Ultra registration form
  • JetPack comments and a contact form
  • MailPoet
  • Theme My Login
  • WP-Members
  • Paid Membership Pro
  • Form Maker by 10Web
  • Visual Form Builder
  • Any WordPress registrations & contact forms

Key Features

  • Accurate Validation
  • Fastest API Response Time
  • Anywhere on Any Device


  • Clearout Email Validator setting page. Here you can add your Clearout API token and check/uncheck the role, disposable and Business email validator options.
  • Example - BWS Form denying free service email address.
  • Example - BWS Form denying role based email address.
  • Example - BWS Form denying invalid email address.
  • Example - BWS Form denying disposable email address.
  • Example - Clearout Account page to generate API token.


Installation using WordPress dashboard

  1. Select Plugins -> Add New.
  2. Search for “Clearout Email Validator”.
  3. Click on Install Now to install the plugin.
  4. Click on Activate button to activate the plugin.
  5. Get your Clearout API token before start using the plugin.
  6. Configure the plugin settings, including your API key and check/uncheck the role, disposable and Business email validator.

Manual Installation

  1. Upload the plugin files to the /wp-content/plugins/clearout-email-validator directory.
  2. Activate the plugin through the ‘Plugins’ screen in WordPress
  3. Get your Clearout API token through here.
  4. Configure the plugin settings, including your API key and switch on or off the valid, disposable and free email validator.


How does this plugin work?

This plugin listen to wordpress is_email() function to verify user typed email address can be accepted or not, behind the screen the verification will be carried out using Clearout API and the result will matched with the appropirate plugin allowed settings

What version of WordPress is required?

This require minimum WordPress version of 4.6, tested and compatible with the latest version 5.2.1

What is an API token and Where can I get it?

API token is a unique representation of your access to Clearout API, it can be generated & copied from Account page

What is a credit??

Credit represent a successful validation for a single email address, trial account comes with 500 FREE credits, more credits can be purchased anytime and credits will never expire

What happen when exhausting free 500 credits?

You need to purchase additional credits. System will notify in advance when you are running out of credits (by default when below 200 credits)

How secure is my data?

Clearout is fully compliant with the GDPR. Data is highly secure with us, as we take security and confidentiality seriously. We know that the email lists are confidential and we do everything we can to make sure that they stay that way! Also, your data is never stored in our system for more than 30 days and if requested it will be removed immediately after processing. Once you finish using our system, all related to your account will be erased in a maximum of 30 days. Also, the information you share with us for payment purposes is encrypted and it is stored in a military grade secure system. We also go out of our way to protect your data and we developed advanced defense mechanisms against misuse, loss, unauthorized access, and improper disclosure. We want to provide the same security that we would want for ourselves. Our customers feel safe knowing that the best email verification service is also the most secure.

How long will it take to validate an email address?

Clearout is the fastest email validation in this universe, we strive to deliver as fast as possible, at times some domains might take more time than the expected. But major free domain like will be lighting speed with less than a half-a-second (less than 500 milliseconds)

How to buy more credits?

Buying credits in Clearout is breezeful experience by clicking on Buy Credits button on top-right

Looking for custom integration of this plugin?

Send us email to or say “Hello” in chat

Where can I report bugs?

Send us email to or say “Hello” in chat


March 12, 2020
awful... total opacity. impossible to close your account!! they force you to buy it. no answer from the support. terrible.... i regret deeply to have use it. too late... dont make the same mistake.
October 29, 2019
I tried everything on the market. This is the only Email Validator that works for an affordable price. There are no free validator services - forget about that. It is cheap and works great. Looked for something similar for years! Would recommend it to everyone.
October 29, 2019
Thanks to clearout for releasing a WordPress plugin, as I can directly link my lead forms now to capture only valid emails in real-time. The timeout selection is awesome good user flow! Love it
October 29, 2019
Used it and the word-press plugin works quite well. Did have to reach out to support because I couldn't figure out what to do with the downloaded file. Support was top notch and very helpful. Extremely pleased with this purchase.
October 29, 2019
Having a valid email list is the key to a success to any email marketing campaign. Clearout helps you Validate your list in a timely manner so that your emails reach your customer's inbox without hampering your domain reputation. Clearout constantly adds new features and works on the enhancement of the product. Here are a few things to highlight about Clearout 1) Accuracy: Clearout understands how important for you to have a valid list to achieve success in the email marketing campaign. Clearout provides 98+% accuracy to enhance your Email Marketing ROI. 2) Speed: Right from validating the list, incorrect spelling till the checking of the mail servers, Clearout has one of the fastest turnarounds. 3) Integrations: Clearout is integrated with multiple CRM to seamlessly help you with your daily mundane. Eg: Hubspot, Mailchimp, Drip, etc... Unlimited API calls for the real-time validation
Read all 10 reviews

Contributors & Developers

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


Change log


  • Initial Release


  • Content and Banner Changed


  • Description Changed


  • Major Bug Fixes and Performace Increased


  • Major Bug Fixes and Performance Improvement


  • Minor Bug Fixes


  • Minor Bug Fixes


  • Performance Improvements.


  • Performance Improvements.


  • WPForm incompatable Fixes


  • Minor Bug Fixes


  • Bug Fixes


  • Performance Improvements & Bug Fixes