Add CC Mail

add_filter('wp_mail', 'add_cc_to_wp_mail', 10, 1);

function add_cc_to_wp_mail($args) {

    // Specify the CC email address

    $cc_email = '[email protected]';

    // Check if headers are an array or string

    if (is_array($args['headers'])) {

        $args['headers'][] = 'Cc: ' . $cc_email;

    } else {

        $args['headers'] .= 'Cc: ' . $cc_email . "\r\n";

    }

    return $args;

}