Add customers to your Mad Mimi email lists.
Allow customers to sign up for your email newsletters by adding an opt-in checkbox to the user registration form of your Exchange store.
After uploading and activating the Mad Mimi Add-on, click the settings gear on the Exchange Add-ons page to configure your Mad Mimi Settings.
Add your Mad Mimi Username and API Key and select which Mad Mimi list you want to add your customer subscribers. Customize your Mad Mimi label (the message that displays next to the opt-in checkbox on the customer registration form) and select whether to check the Mad Mimi box by default.