Miquel Colomer

This plugin uses the uProc for WordPress API <a href="https://uproc.io" rel="nofollow ugc">https://uproc.io</a> to check if an email address really exists or not.
The plugin integrates with the is_email() function of WordPress. It works seamlessly with:
<ul>
<li>Contact Form 7</li>
<li>Jetpack/Grunion</li>
<li>WordPress registration forms</li>
<li>and with any other form which uses the is_email() function (no changes required).</li>
</ul>
The plugin can also be integrated into 3rd party forms that do not use the is_email() function.
<h4>How does it work?</h4>
The uProc API real-time validation process includes all of the following tests:
<ul>
<li>Syntax verification (IETF/RFC standard conformance)</li>
<li>DNS validation, including MX record lookup</li>
<li>Disposable email address (DEA) detection</li>
<li>Misspelled domain detection to prevent Typosquatting</li>
<li>Freemail address detection</li>
<li>SMTP connection and availability checking</li>
<li>Temporary unavailability detection</li>
<li>Mailbox existence checking</li>
<li>Catch-All testing</li>
<li>Greylisting detection</li>
<li>Block free domain emails (like Gmail, Hotmail, Yahoo, …)</li>
<li>Avoid email validations on Woocommerce orders</li>
</ul>
The plugin requires an API Key (free, no credit card required): 
<a href="https://app.uproc.io/#/signup" rel="nofollow ugc">https://app.uproc.io/#/signup</a>
We do not send any email to the recipient address during the entire validation process. All processing is done on our servers, your IP addresses and domains are not affected in any way by the Email-Validator service – absolutely no blacklisting risk for your IPs and domains.
Data Protection and Privacy Policy: see the Frequently Asked Questions section.
<h3>What is uProc</h3>
uProc is a SaaS platform where you can check or enrich any available field in your database. Please, check our catalog at 
<a href="https://app.uproc.io/#/tools" rel="nofollow ugc">https://app.uproc.io/#/tools</a> 
to find the right tool for you.
Next fields can be processed with our catalog: 
* Audio: speeches 
* Communication: Email, Mobile, Phone 
* Company: Cif, Name, Employee 
* Finance: Credit card, Account, Currency 
* Geographical: Country, City, Coordinates 
* Image: Screenshot, EXIF 
* Internet: Domain, IP, URI 
* Personal: Name, Surname, Gender 
* Product: EAN, UPC, ASIN, GTIN, ISBN 
* Security: Password, MD5, Luhn 
* Text: Uppercase, Lowercase, Lists

uProc for WordPress

I hope this plugin will be useful for your site.

You can validate emails on registration or comments.
Some cash is added to your account by default to test it.

The weak point: No other validation is supported yet when lots are available in the service catalog.

This will be solved soon. Mobile and landline phones validations are needed in my WordPress site.

Nice plugin, useful for my site

With the uProc for Wordpress plugin you can easily verify if an email address really exists and is valid. Additionally, you can check all existing too …

debounce

<h3>🚀 Transform Your Email Quality with AI-Powered Validation</h3>
Tired of fake emails, spam traps, and disposable addresses cluttering your database? DeBounce Email Validator is the ultimate solution for WordPress websites that demand real, deliverable email addresses.
<h3>Why Choose DeBounce?</h3>
<ul>
<li>99.9% Accuracy Rate – Industry-leading validation precision </li>
<li>Zero IP Impact – No emails sent, no blacklisting risk </li>
<li>GDPR Compliant – Complete privacy protection </li>
<li>Real-time Validation – Instant feedback for users </li>
<li>Advanced AI Detection – Catches sophisticated spam attempts</li>
</ul>
<h3>Perfect For</h3>
<ul>
<li>E-commerce stores (WooCommerce) </li>
<li>Lead generation forms </li>
<li>User registration systems </li>
<li>Contact forms </li>
<li>Newsletter signups </li>
<li>Any WordPress form </li>
</ul>
Install, connect your API key, and watch your email quality soar while reducing spam and improving conversion rates.
<h3>Supported Forms and Plugins</h3>
🛒 E-COMMERCE & BUSINESS FORMS
<ul>
<li>WooCommerce – Validate shipping and billing emails </li>
<li>Gravity Forms – Enterprise-grade form validation </li>
<li>Contact Form 7 – Most popular contact form plugin </li>
<li>WPForms – Drag & drop form builder </li>
</ul>
🏗️ ADVANCED FORM BUILDERS
<ul>
<li>Ninja Forms – Professional form creation </li>
<li>Formidable Forms – Complex form solutions </li>
<li>Forminator – Modern form builder </li>
<li>Fluent Forms – Advanced form management </li>
<li>Elementor Forms – Page builder integration </li>
<li>WSForms – Premium form builder </li>
</ul>
⚙️ WORDPRESS CORE FEATURES
<ul>
<li>WordPress Comments – Validate commenter emails </li>
<li>User Registration – Ensure valid signup emails </li>
<li>Jetpack Forms – Automattic’s form solution </li>
</ul>
🔧 CUSTOM INTEGRATION
<ul>
<li>Any Custom Form – Works with <code>is_email()</code> function </li>
<li>Third-party Plugins – Automatic compatibility </li>
<li>API Integration – Direct API access available</li>
</ul>
<h3>Key Features</h3>
🔍 CORE VALIDATION CHECKS
<ul>
<li>DNS & MX Record Validation – Verify domain authenticity </li>
<li>Syntax Verification – IETF/RFC standard compliance </li>
<li>Mailbox Existence – Confirm email actually exists </li>
<li>SMTP Connection Testing – Real server verification </li>
</ul>
🛡️ SECURITY & SPAM PROTECTION
<ul>
<li>Disposable Email Detection – Block temporary email services </li>
<li>Spam Trap Identification – Prevent honeypot emails </li>
<li>Typosquatting Prevention – Catch misspelled domains </li>
<li>Role-based Email Filtering – Block info@, admin@, etc. </li>
<li>Custom Blocklist – Your own domain/email restrictions </li>
</ul>
⚡ PERFORMANCE & RELIABILITY
<ul>
<li>Real-time Validation – Instant user feedback </li>
<li>Temporary Unavailability Detection – Handle server issues </li>
<li>Catch-All Domain Testing – Identify low-quality domains </li>
<li>Greylisting Detection – Advanced spam protection </li>
<li>99.9% Accuracy Rate – Industry-leading precision </li>
</ul>
🔒 PRIVACY & COMPLIANCE
<ul>
<li>GDPR Compliant – No email storage </li>
<li>Zero IP Impact – No emails sent from your servers </li>
<li>Secure API Communication – Encrypted data transfer </li>
<li>Privacy-First Design – Your data stays private </li>
</ul>
📊 ANALYTICS & MONITORING
<ul>
<li>Validation Logs – Track all validation attempts </li>
<li>Performance Metrics – Monitor validation success rates </li>
<li>Custom Error Messages – Branded user feedback </li>
<li>Multi-language Support – Global accessibility </li>
</ul>
Start with 100 Free Validations – <a href="https://debounce.io/pricing/" rel="nofollow ugc">Get your API key now</a>

DeBounce Email Validator


This plugin is very useful and I have used it on my site. Recently, it has been developed very well and good facilities have been added to it. thank you very much


Greate Plugin

Real-time email validation for WordPress forms. Block invalid, disposable, and risky emails to keep your database clean and improve deliverability.

uProc for WordPress vs DeBounce Email Validator