2. The method of claim 1 , wherein: the first plurality of electronic messages is formatted for display within an electronic message folder of the messaging application; the first electronic message is assigned to the first message cluster and is thereby included in the first plurality of electronic messages; the electronic message folder further includes a second plurality of electronic messages not associated with the first message cluster; and displaying the second view of the first cluster graphic comprises expanding the first cluster graphic to display the first plurality of electronic messages individually while maintaining display of information representing the second plurality of electronic messages.
1. A method comprising: at a computing device having one or more processors and memory storing one or more programs for execution by the one or more processors: displaying a messaging application for a first user; responsive to a determination that a message body of a first electronic message satisfies a first set of content-based clustering rules associated with a first message cluster, assigning the first electronic message to the first message cluster, which has a first plurality of electronic messages, wherein each electronic message in the first message cluster is either addressed to the first user or originates from the first user; displaying a first view of a first cluster graphic for the first message cluster, wherein the first view collectively represents the electronic messages in the first message cluster; in response to a first predefined user action, displaying a second view of the first cluster graphic, wherein the second view replaces the first view and displays the first plurality of electronic messages individually within the first message cluster; and in response to a second predefined user action, expanding one or more electronic messages of the first plurality of electronic messages inline within the first message cluster.