When a contact selects the "unsubscribe" link in your email, they are directed to the "Manage Subscription" page. This is where they will uncheck all boxes for any list they may be on. They are then automatically moved to the Master Unsubscribe List.

If a contact has followed the above procedure but is still receiving your emails, they may be signed up under another email address as well. They will need to make sure they unsubscribe from each email account to ensure they do not receive future correspondence from you.

If a subscriber has opted-out in error, they can be added to your list again with just a few simple steps.