La Poste is the mail service of France, which also operates postal services in the French Overseas Departments of RĂ©union, Guadeloupe, Martinique and French Guiana, and the territorial collectivities of Saint Pierre and Miquelon and Mayotte. It is headquartered in the 15th arrondissement of Paris.
http://en.wikipedia.org/wiki/La_Poste_(France)