Please ensure that users are completely removed when you delete a user.
It should not be necessary to complete this manually.
In the meantime, the documentation should clearly point this out or a note should be made when deleting.
Sincerely, Marko
This is the current doc section about Email data
https://docs.nethserver.org/en/v7/mail.html#users-mailboxes
Is that relevant for you?
Thank you Davide.
For preventing this problem no information are provided. Or I’m blind…