How to change account email address?

Bonjour    comment faire pour modifier l'adresse e-mail

merci

If I understood your question correctly, you want to change an email address of your account. This can be done on the Profile page. 

How to Properly Add, Change, and Test a New Email Recipient Address

If you want to change the recipient email address of the Email Notification, please check this guide as well:

How to Find and Change the Email Address Used for Notification Email?