As a user I want to be able to create recipient lists. When sending a mail or calendar invites I want to be able to use such a list in the address field to send the mail to every user in the list without entering each mail address individually. Furthermore, I want to be able to share such lists with other users and define who has which right on the list (read/write/manage).
As an owner of an iOS device i want to be able to configure the Tutanota app as the default email app. When clicking on a email address (e.g. from address book or a mailto link) the Tutanota application should start and open an email editor.
As a Tutanota user i still want to be able to do certain write operation while i am using the Tutanota application in offline mode. These actions should get synchronized after i am online again. Such actions are: