Rule selection is enforced on user email inboxes using an inbox monitor and administrative rules at an email server. According to one embodiment, a consumable item parameter request is transmitted to a device associated with a consumable item, and the consumable item parameter is then received. Further security features can also be used with soft luggage provided herein, including padlocks, and flaps crossing the zipper plane, for example. The address space of an external bus of the microprocessor is divided into a predetermined number of areas to which the semiconductor memories and PC cards are fixedly assigned.