Abstract: A mailbox apparatus includes a flag support assembly being mounted to a mailbox assembly and a housing attached to the mailbox. Aflag support arm is movably disposed in the housing. A spring member biases the flag support arm. A flag member is pivotally attached to the housing such that it contacts the flag support arm. A mail delivery signaling assembly including a switch member being disposed in the housing and being in contactable relationship to the flag support arm, and also including a light-emitting member being connected to the switch member with wires, and further including a pressure sensitive sensor being disposed in the box and being connected to the light-emitting member, and also including a power source being connected to the switch member, to the light-emitting member, and to the pressure sensitive sensor.