I need to send an activation e-mail using PHP+CodeIgniter, we encode the activation URL using urlencode() and worrks well with everything except Outlook Express. It seems it decodes the encoded URL, so it becomes invalid.Is there a work around for this?Exampleriginal URL: http://www.foo.com/registrarme/acti...4YTUzYjc1NzgzMTAwYjhmZmZjMjBmZTZhZjA1ODUxYg==Outlook Express turns it into:http://www.foo.com/registrarme/acti...4YTUzYjc1NzgzMTAwYjhmZmZjMjBmZTZhZjA1ODUxYg==