Excerpt from this article:
Sure, the French have it sweet with a 35 hour work week and five+ weeks of paid vacation. But (Mon dieu!) workers there are still bombarded with job-related emails when off the clock. Almost a million of them won’t need to put up with such rude intrusions anymore, though. A legally binding deal signed by tech industry employers and several unions in France means many companies are now forbidden to contact employees electronically after their work day is over.