Abstract: A mailbox assembly is disclosed comprising a mailbox body having a roof, parallel sidewalls (6), and a front door (4). The assembly further includes a flag housing assembly (8) for outgoing mail indication, attachable to one side of the mailbox body, and a second housing assembly (10) attachable to one side of the mailbox body for incoming mail indication. The flag assembly (10) is pivotally attachable to either of the mailbox body sidewalls, at the election and preference of the user, and comprises actuation means (40) responsive to pivotal opening of the mailbox door, and a pivot post member (42) for insertion through co-aligned apertures in the mailbox body and door, whereby pivotally attaching the flag housing assembly to one of the mailbox sides and pivotally attaching the door to the mailbox body.