Thanks for the info, will take a look!
I am a little confused. The "I wish to subscribe" box is selected by default. If a user checks out without touching the tickbox then they dont receive an email as they are staying subscribed (unless they are previously not subscribed or new, when they will recieve the subscribe email).
if they click the box and take out the tick it will send the unsubscribe email.
Is this not what you are experiencing?