|1| Choose "Mesages" from the main menu by clicking on it.
|2| Click on the "modify"-button in the row "Newsletter".
|3| Click on the "modify"-button in the row "Email layout defaults".
|4| Fill out the input fields. In the input field for "footer", you
should insert a link that leads to the unsubscribe form. An example
text is shown below the input field.