Abstract: Protective device for a mail box for protection against snow plow debris and vandalism which is made of a strong sheet-like material having a horizontal shelf with preformed apertures for supporting and engaging the mail box and also engaging the ground anchoring member for the mail box. Contiguous to the shelf on one side is a vertically upward shroud facing oncoming traffic and on the other side of a shelf a contiguous downwardly extending skirt is provided. The outer surfaces of the shroud and skirt may have indicia thereon.