The Mail tab organizes any parts of your site that involve email. You can edit mail templates, which are used by various paragraphs to send out emails in response to a user’s actions, such as filling out a registration form. Subscriptions are a simple way to manage user sign-ups. Additional modules can add extra functionality to this tab. For example, the Share module adds tell-a-friend features and the Mailing module adds email campaigns. For documentation on the Share or Mailing modules, see Modules .