NoParam

NoParam Email Validation & Anti-Spam Prevention is a powerful plugin designed to ensure that your website’s email list is clean, legitimate, and free from spam. By integrating advanced email verification technology and spam prevention features, this plugin helps you protect your email sender reputation, improve deliverability, and engage with real users. Keep your site free of fake or disposable email addresses and safeguard your communications from spam and invalid sign-ups.
<h3>Features</h3>
<ul>
<li>Real-time email validation – Ensures only valid, legitimate emails are submitted. </li>
<li>Smart Email Suggestions – Detects and suggests corrections for common typos (e.g., “gmal.com” → “gmail.com”). </li>
<li>Spam Prevention & Fake Email Blocking: Safeguards your site from disposable, role-based, or temporary emails.</li>
<li>Improves Email Deliverability: Helps protect your sender reputation and ensures higher inbox placement.</li>
<li>Privacy-focused: No tracking, no storing, no reselling </li>
<li>Easy API integration for developers</li>
</ul>
<h3>Supported Forms</h3>
<ul>
<li>Contact Form 7 </li>
<li>WPForms </li>
<li>WordPress Registration Page </li>
<li>WordPress Post Comments </li>
<li>More integrations coming soon!</li>
</ul>
<a href="https://noparam.com" rel="nofollow ugc">Get your API key for Free</a>
<h3>External services</h3>
This plugin connects to NoParam’s email validation API to check the validity of email addresses submitted through forms.
NoParam’s Email Validation API uses advanced algorithms to detect fake, disposable, and temporary emails, ensuring the highest level of accuracy and reducing the chances of spam or bounce-back emails.
<ul>
<li>Service Used: NoParam Email Validation API – <a href="https://noparam.com" rel="nofollow ugc">Free Email Checker</a></li>
<li>Data Sent: The plugin sends email addresses entered in form fields to the NoParam API for validation. </li>
<li>Why: This is required to determine whether an email address is valid, invalid, or risky. </li>
<li>When: This occurs when users submit forms that are configured to use the validation service. </li>
<li>Privacy & Terms:
<ul>
<li><a href="https://noparam.com/privacy" rel="nofollow ugc">Privacy Policy</a> </li>
<li><a href="https://noparam.com/terms" rel="nofollow ugc">Terms of Service</a> </li>
</ul>
</li>
<li>Documentation:
<ul>
<li><a href="https://docs.noparam.com" rel="nofollow ugc">API Docs</a></li>
</ul>
</li>
</ul>

NoParam Email Validation – Email Verification & Anti-Spam Prevention

NoParam offers real-time email validation for WordPress to prevent fake signups and spam, improving email deliverability.

Antideo

The email validator is designed by Antideo to help combat spam coming in through contact forms. Antideo <a href="https://www.antideo.com/email-validation/" rel="nofollow ugc">validates email addresses</a> entered through your contact forms in real time to prevent inquiries from fake email addresses. The email validator plugin comes packed with several features that help you –
<ul>
<li>Check the syntax of the email entered, to quickly flag the error to the visitor</li>
<li>Check for disposable or temporary emails</li>
<li>Prevent inquiries from free ESP’s like Gmail, Yahoo, etc (Can be switched on and off)</li>
<li>Prevent inquiries from role-based emails like info@, support@, admin@ etc (Can be switched on and off)</li>
<li>Check MX records to identify invalid emails</li>
<li>Create and maintain your own local whitelist of domains and emails </li>
<li>Create and maintain your own local blacklist of domains and emails</li>
</ul>
Armed with the capabilities of our plugin you would be able to eliminate a major portion of contact form spam, as spammers seldom use a valid business email address. Our plugin out of the box is compatible with major forms like
<ul>
<li>Contact Form 7</li>
<li>Gravity Forms</li>
<li>Mailster Form</li>
<li>WooCommerce</li>
<li>MailChimp</li>
<li>Ninja Forms</li>
<li>Formidable forms</li>
<li>JetPack comments and a contact form</li>
<li>MailPoet</li>
<li>WP-Members</li>
<li>Paid Membership Pro</li>
<li>Form Maker by 10Web</li>
<li>Visual Form Builder 
And pretty much any other form that uses the default WordPress is_email() function. The plugin is very easy to install and activate, no tech knowledge whatsoever is needed to get going with the plugin.</li>
</ul>
Advantages of our plugin
<ul>
<li>No limits on the number of validations – go crazy, it’s unlimited!!</li>
<li>Real time validations done in a fraction of a second</li>
<li>Extensive database of 84K+ disposable email domains and constantly being updated with newer ones</li>
<li>Clean and super friendly UI that is easy to use</li>
<li>A powerful free version and an affordable premium version </li>
</ul>
We are literally eating our own dog food, implementing the <a href="https://www.antideo.com/wordpress-email-validation-plugin/" rel="nofollow ugc">Antideo Email Validation plugin</a> on several websites that we own, which has resulted in spam inquiries going down by over 87%.
You can access more information on the plugin as well as the several aspects of email validation <a href="https://www.antideo.com/blog/" rel="nofollow ugc">here</a>.
Disclaimer: This plugin is an email validator and not an email verifier

Antideo Email Validator

Form email validation, Email Blacklist, Domain Blacklist, Form email check, Real time email validator Requires at least: 4.7 Tested up to: 6.9.

NoParam Email Validation – Email Verification & Anti-Spam Prevention vs Antideo Email Validator