D. Moving within Île-de-France (checklist)
Change your CPAM, ARRCO, AGIRC adresses via
https://connexion.mon.service-public.fr
Takes 4-6 weeks to receive in the mail confirmation of address change
Notify your Mutual Insurance Company (e.g. SMAPRI or AXA)
Notify your bank
To redirect your mail, within France, or internationally:
https://boutiqueducourrier.laposte.fr/reexpedition-definitive-nationale