Real-time email verification for WordPress. Block invalid, disposable, and risky email addresses on registration, comments, checkout, and forms.

ClearBounce

ClearBounce Email Verification validates email addresses in real-time using the <a href="https://clearbounce.net" rel="nofollow ugc">ClearBounce</a> email verification API. Stop fake signups, reduce bounces, and protect your sender reputation.
Key Features:
<ul>
<li>Real-time email verification via SMTP-level checks</li>
<li>Block undeliverable, disposable, role-based, and risky emails</li>
<li>Typo detection with “Did you mean…?” suggestions</li>
<li>Smart caching to minimize API calls</li>
<li>Fail-open design ensures forms always work, even during API outages</li>
<li>Detailed verification logs and statistics</li>
<li>Customizable error messages</li>
<li>Works with WordPress registration, comments, and all major form plugins</li>
</ul>
Supported Integrations:
<ul>
<li>WordPress Registration</li>
<li>WordPress Comments</li>
<li>WooCommerce (checkout and registration)</li>
<li>Contact Form 7</li>
<li>Gravity Forms</li>
<li>WPForms</li>
<li>Elementor Pro Forms</li>
<li>Ninja Forms</li>
<li>Fluent Forms</li>
<li>Fallback mode (hooks into is_email for universal coverage)</li>
</ul>
How It Works:
<ol>
<li>A visitor submits a form with an email address</li>
<li>ClearBounce verifies the email in real-time (SMTP check, MX records, disposable detection, etc.)</li>
<li>If the email fails your configured rules, the form shows a friendly error message</li>
<li>Valid emails pass through normally with zero friction</li>
</ol>
What ClearBounce Checks:
<ul>
<li>Email syntax validation</li>
<li>MX record verification</li>
<li>SMTP mailbox verification</li>
<li>Disposable email detection</li>
<li>Role-based email detection (info@, admin@, etc.)</li>
<li>Free email provider detection</li>
<li>Catch-all domain detection</li>
<li>Typo detection with smart suggestions</li>
</ul>

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