bcc-all-emails-woocommerce.php

<?php

add_filter( 'woocommerce_email_headers', 'add_bcc_all_emails', 10, 2);
 
function add_bcc_all_emails($headers, $object) {
 
    $headers = array();
    $headers[] = 'Bcc: Name <me@email.com>';
    $headers[] = 'Content-Type: text/html';
 
    return $headers;
}