1. At least one computer-readable storage media having instructions stored thereon that, when executed by a processor of a device, cause the device to: receive via a user interface of the device a user-defined custom event and one or more e-mail accounts associated with the user-defined custom event; receive sensor data from one or more sensors of the device; detect a sensor event related to movement of a physical object based at least in part on a comparison between the sensor data and the user-defined custom event; and communicate with one or more messaging systems to transmit an email to the one or more e-mail accounts associated with the user-defined custom event, wherein the email includes a captured digital image that is captured in response to the sensor event.