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.

EmailVerify.io

EmailVerify offers a robust solution for verifying email addresses in real-time, protecting your site from spam registrations and enhancing email campaign effectiveness. With over 99% accuracy, our verification service integrates seamlessly with popular WordPress forms, offering broad compatibility and exceptional reliability.
Key Features: 
– Check email address during the form submission. 
– Can detect valid, invalid, temporary, catch-all, inbox-full, spamtrap addresses. 
– Quick mode verification checks an email within 0.5 seconds. 
– Dynamic detection of disposable and temporary email addresses. 
– Supports most of the free email providers and business/professional emails. 
– Live API for instant verification during user registration (within 0.5 seconds). 
– Verification mode and custom filters can be selected. 
– Real-time email validation without storing personal data permanently.
Supported WordPress Forms: 
– Formidable Forms 
– Gravity Forms 
– Default WordPress Registration Form 
– WooCommerce Checkout Form 
– Contact Form 7 
– Ninja Forms 
– WPForms 
– Elementor Forms 
– Fluent Forms 
– Forminator Forms 
– HappyForms 
– Mail Mint Form 
– Contact Form by BestWebSoft 
– WordPress Comment Form 
– Support for more forms will be added
To learn about the list of features and detailed benefits, please visit https://emailverify.io/.
<h3>Third-Party Service Usage</h3>
This plugin integrates with the EmailVerify.io service (https://emailverify.io/) to provide real-time email verification functionality. Through API calls to EmailVerify.io servers, it verifies email addresses and retrieves account information, using the following endpoints:
<ul>
<li>Verify email addresses: https://app.emailverify.io/api/v1/validate?key=[your_api_key]&email=[email]</li>
<li>Retrieve account information: https://app.emailverify.io/api/v1/check-account-balance?key=[your_api_key]</li>
</ul>
By installing and activating this plugin, you consent to the transmission of email addresses to these URLs for the purpose of verification.
Data Privacy and Security Commitment: We prioritize your privacy and the security of your data. All submitted email addresses are processed for validation purposes only and are not stored indefinitely on our servers. We do not sell or use the submitted emails for marketing purposes. EmailVerify.io is working towards full GDPR compliance, and this practice is part of our commitment to maintaining your trust and meeting data protection standards.
The use of the EmailVerify.io service is subject to EmailVerify.io’s Terms of Service and Privacy Policy, available at:
<ul>
<li>Terms of Service: https://app.emailverify.io/terms-of-use/</li>
<li>Privacy Policy: https://app.emailverify.io/privacy-policy/</li>
</ul>
We encourage you to review these documents to understand how EmailVerify.io handles and protects your data. It is crucial to ensure that the use of this plugin complies with your website’s privacy policy and any applicable legal obligations concerning data protection and privacy.

Safeguard your online forms against invalid, temporary, disposable, and harmful email addresses with real-time verification.

BillionVerify Email Validator vs EmailVerify.io