# Block Disposable Emails on GiveWP Donations

> Rejects donations made with throwaway email addresses (such as mailinator or 10minutemail), cutting down on card-testing fraud through your donation forms.

- Type: PHP
- Runs: Run everywhere
- Category: [Plugin Integrations](https://wpide.com/library/category/integrations/)
- Tags: givewp, fraud, validation
- Author: WPIDE Team
- Installs: 0
- Updated: 2026-10-28
- Page: https://wpide.com/library/give-block-disposable-emails/

## Code

```php
$wpide_blocked = array( 'mailinator.com', '10minutemail.com', 'guerrillamail.com', 'tempmail.com', 'yopmail.com', 'trashmail.com', 'sharklasers.com', 'getnada.com' );

add_action( 'give_checkout_error_checks', function ( $valid_data, $data ) use ( $wpide_blocked ) {
    $email  = isset( $data['give_email'] ) ? strtolower( sanitize_email( $data['give_email'] ) ) : '';
    $domain = substr( strrchr( $email, '@' ), 1 );

    if ( $domain && in_array( $domain, $wpide_blocked, true ) && function_exists( 'give_set_error' ) ) {
        give_set_error( 'wpide_disposable_email', __( 'Please use a permanent email address so we can send your receipt.' ) );
    }
}, 10, 2 );
```

## Notes

Add more domains to $wpide_blocked as you spot them.

## How to use it

Install the free WPIDE plugin (https://wordpress.org/plugins/wpide/), find "Block Disposable Emails on GiveWP Donations" in its snippet library and add it in one click; or create a new PHP snippet in WPIDE (or any code snippets plugin) and paste the code above. More snippets: https://wpide.com/library/