My campaign analysis makes me aware that I need to implement a 'list-unsubscribe' in my email campaigns for Microsoft.
We already have our own unsubscribe link.

I've looked in my hotmail account and noticed that most other emails from other companies have the "Too many newsletters? You can unsubscribe." right at the bottom of the email.

I've looked around in a lot of places to try and find a way to implement this to no avail.

Is this configured in the html/css of the campaign or another way?