Temp Email Blocker

Stop disposable emails dead in their tracks.

A universal, lightweight JavaScript SDK that automatically detects and blocks temporary email addresses on any website, CMS, or form builder.

Get StartedTry Demo

Live Demo

Try entering a disposable email like test@10minutemail.com or user@mailinator.com. The SDK will automatically block it.

How it works

  • Automatically detects any input with type="email" or name containing "email".

  • Validates against a constantly updated list of thousands of disposable domains.

  • Prevents form submission and highlights the invalid field instantly.

Installation

Add a single script tag to your website and you're protected. It works with WordPress, Shopify, Webflow, React, and custom HTML.

HTML
<!-- Add this just before the closing </body> tag -->
<script src="https://your-domain.com/temp-email-validator.js"></script>

Configuration (Optional)

You can customize the behavior by defining a global configuration object before loading the script.

<script>
  window.TempEmailBlocker = {
    message: "Please use a real email address.",
    highlightColor: "#fee2e2",
    textColor: "#ef4444",
    whitelist: ["mycompany.com"],
    blacklist: ["spammy-domain.com"],
    useApi: false // Set to true to use the API endpoint
  };
</script>

WordPress Integration

To add this to WordPress, you can use a plugin like "Insert Headers and Footers" or add this to your theme's functions.php:

add_action('wp_footer', function() {
  echo '<script src="https://your-domain.com/anti-temp-email.js"></script>';
});

Backend API

Need to validate emails on your server? Use our fast, CORS-enabled REST API.

GET/api/check-email?email=test@mailinator.com

Request Example

fetch('https://your-domain.com/api/check-email?email=test@mailinator.com')
  .then(res => res.json())
  .then(data => console.log(data));

Response Example

{
  "valid": false,
  "reason": "Disposable email domain detected",
  "domain": "mailinator.com"
}