Disable property enquiry emails from sending

gistfile1.txt

add_filter( 'wp_mail', 'stop_property_enquiry_email' );
function stop_property_enquiry_email( $args ) {
    if ( isset( $args['subject'] ) && strpos( $args['subject'], 'Property Enquiry' ) !== false ) {
        // Return false to completely cancel the email.
        return false;
    }
    return $args;
}