Slidable tray mailbox insert

A tray and track assembly for a typical rural mailbox has a track frame attached to the mailbox bottom with longitudinal rails for receiving and guiding a pair of track members on the bottom of a tray. Two extension arms are pivotally attached to the sidewalls of the tray, and attached to the inside of the hinged mailbox front door. When the front door is opened the extension arms pull the tray forward on the track frame until stop members on the track frame and tray halt the forward movement of the tray. A part of the tray is then beyond the interior of the mailbox. The extension arms push the tray back into the mailbox when the front door is closed. Ridges elevate the mail above condensation that forms on the tray bottom, and drain holes in the tray allow such liquids to drain.