Backup windows 10 Mail and Calendar applications

I got a backup of the mail and calendar apps on windows 10 by taking a backup of the directory: C:\Users\\AppData\Local\Packages\microsoft.windowscommunicationsapps_8wekyb3d8bbwe\LocalState

Now i try to get some emails by coping the files on the right directory after a reinitialisation of mail and calendar app, i get a notification "Account ... disabled"

Have you please a solution to read those emails ?

Thanks