Where can I set up the notifications I want to receive? What is the Notification Preferences feature? For what type of notifications can I choose my preferences? What types of contact email-related notifications can I receive? Is there a way to know if a contact opened an email campaign that I sent? What happens if I enable a setting in Notification Preferences and disable the same in Actions' configuration? I am receiving Mention notifications on the Actions page as well as in my inbox. How do I restrict notifications to Actions? Can I set up alert notifications for the Assigned to field in emails?