OK I was able to start over with the initial config of /e/, entering my e acocunt etc… Now if I want to start Mail, it works.
Now, what about my 7 other email account ?
I understand that if I enter them it could messup Mail ? Or it’s only in the initial LOGIN, I need to enter myaccount@e.email and later I can enter the other email account ?
Or may be that account thing and " email account " are 2 different things ?
This is working as soon as you have gotten an email from e.foundation with your credentials and after you have confirmed this email.
An input of an email address <> e.email will break the email app and you have to start over with a new fresh eOS flash