Block Free Emails

A WordPress plugin that blocks free consumer email providers on an Elementor Pro form and shows a popup modal asking the user to enter a business email instead.

Requirements

• WordPress 5.0+
• Elementor Pro (with Forms module)
• PHP 7.4+

Installation

1. Download or clone this repository
2. Upload the block-free-emails folder to /wp-content/plugins/
3. Activate the plugin in WordPress Admin → Plugins

How it works

Three layers of protection run in sequence:

Default target form

The plugin is pre-configured to protect a form named exactly:

Contact Us Form

This must match the Form Name field inside the Elementor Pro form widget settings (case-sensitive).

Using a different form name

If your form has a different name, open block-free-emails.php and change line 19:

private const TARGET_FORM = 'Contact Us Form';

For example:

private const TARGET_FORM = 'Get In Touch';

Save the file and the plugin will protect your renamed form automatically.

Customising the popup message

The popup title, body text, and button label are in block-free-emails.php inside enqueue_assets():

wp_localize_script( 'bfe-script', 'bfeData', [
    'domains'  => self::$free_domains,
    'title'    => 'Business Email Required',
    'message'  => 'Free email providers such as Gmail, Yahoo, and Outlook are not accepted...',
    'btnLabel' => 'Got it — I\'ll update my email',
] );

Edit those three strings to match your language or tone.

Adding or removing blocked domains

The domain list is the $free_domains array in block-free-emails.php. Add any domain you want blocked:

private static $free_domains = [
    'gmail.com',
    'yahoo.com',
    // add more here
    'qq.com',
    'naver.com',
];

License

This plugin is released under the GPL-2.0-or-later license.
You are free to use, modify, and redistribute it under the same license terms.