Abstract: A tray adapted to fit within a conventional mailbox. The tray includes a flat elongated center body and two side members, each having perpendicular short and tall walls. The tray is adjustable to accommodate a variety of mailbox interior sizes, such that the side walls of the tray are both proximate to the interior side walls of the mailbox. Adjustment slots in the center body allow the side members to slide laterally to fit the width of the mailbox. Either the short walls or the tall walls of the side members can coupled to the body to increase the range of widths of the tray.