This week we take a deep dive into the national institution that is France's postal service. The French are very attached to "La Poste", though they love to complain about it too, and its evolution mirrors changes in society. Come rain or shine, postal workers in their trademark daffodil-yellow vehicles have delivered mail 24/7, making them some of France’s favourite people, just after their bakers. But like in other countries, with the development of other forms of communication such as email and text messaging, fewer and fewer people are sending letters. So how is La Poste adapting to these tectonic shifts? FRANCE 24's Florence Villeminot has been finding out.