To subscribe or unsubscribe a contact from receiving your emails, please follow these instructions:
1. Click "Contacts" at the top of your screen. This opens your contacts list:
2. Click the "..." to the far right of the contact's name and select "View/Edit":
3. This opens up the "Edit Contact" side window. Check the "Subscribed" button to subscribe the contact to emails or uncheck it to unsubscribe them:
4. Click "Save" at the bottom of the window:
Contacts can also unsubscribe from emails themselves by clicking the "unsubscribe" link included at the end of every email they receive.