Enable admin email

Hello, I wanted to know how to enable the admin email box, for notifications in general. Thank you.

I think it’s enough to activate the admin user by changing it’s password.
The admin mailbox should be listed under Addresses in the mail app.

Hi, I only have an Administrator who maybe is an alias of admin?

No, it’s not an alias, you need to create the user admin.
In NS8 only a user administrator is created by default.