Also store page URL.

Could you also save the page on which the user entered the website through the UTM link? It would be helpful.

The code changes required:

Second last line in JS, add:
createCookie(“_deco_utmurl”, document.location.href, 60);

PHP file, fetch the cookie and append it the following to the email:
$url = $_COOKIE[‘_deco_utmurl’];
$email_utm .= ‘<tr><td>URL</td><td>’. $url .'</td></tr>’;

I am putting this up here so that a future update does not require me to monkey patch my code again and also someone could find it useful.

Thank you.