OK, further to what I have already said, I like most users it seems would like an unsubscribe feature that does not require the user to log on.
To accomplish this I have replaced the unsubscribe.php file with my own that accepts one URL parameter "UserEmail" the user is presented with a "Confirm" button which when pressed updates the database setting the "UserSubscribed" field to 0.
In my newsletter template I have added the following link:
This should work fine, using the UserEmail token. I have two issues. One, when I click on the "unsubscribe" link I get sent to the following URL:
This link is not resolving correctly to the root of my website (the part in red is superfluous)
Secondly when I remove the the red portion of the url and refresh the page, I'm sent to:
As you can see the UserEmail token has not resolved correctly.