Ikbear

BillionVerify Email Validator checks email addresses in real time as your forms are submitted, stopping fake, mistyped, disposable and undeliverable emails before they reach your database. Cleaner signups mean fewer bounces, less spam and healthier email campaigns.
The plugin verifies each address against the BillionVerify API — performing syntax, MX and SMTP mailbox checks — and rejects the submission when the address matches a status you have chosen to block.
Key features
<ul>
<li>Real-time verification during form submission (no front-end changes required).</li>
<li>Detects valid, invalid, disposable, catch-all, role and risky addresses.</li>
<li>Choose exactly which statuses block a submission — invalid only by default.</li>
<li>Custom error message shown to visitors.</li>
<li>Built-in connection test and single-email test tool in the admin.</li>
<li>Result caching to save credits on repeated addresses.</li>
<li>Fail-open by default: if the API is unreachable or credits run out, forms keep working.</li>
</ul>
Supported forms
<ul>
<li>Default WordPress registration form (including multisite signup)</li>
<li>WordPress comment form</li>
<li>WordPress lost-password form</li>
<li>WooCommerce checkout and account registration</li>
<li>Contact Form 7</li>
<li>WPForms</li>
<li>Gravity Forms</li>
<li>Elementor Pro Forms</li>
<li>Fluent Forms</li>
</ul>
<h3>Third-Party Service Usage</h3>
This plugin sends email addresses to the BillionVerify API (https://billionverify.com/) for verification. Through API calls to BillionVerify servers it verifies email addresses and retrieves account credit information, using the following endpoints:
<ul>
<li>Verify an email address: https://api.billionverify.com/v1/verify/single</li>
<li>Retrieve credit balance: https://api.billionverify.com/v1/credits</li>
</ul>
By installing and activating this plugin, you consent to the transmission of submitted email addresses to these URLs for the purpose of verification. Use of the BillionVerify service is subject to BillionVerify’s Terms of Service (https://billionverify.com/terms) and Privacy Policy (https://billionverify.com/privacy).

BillionVerify Email Validator

Real-time email verification for your WordPress forms. Block invalid, disposable, catch-all and role addresses using the BillionVerify API.

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.com/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.

BillionVerify Email Validator vs DeBounce Email Validator