How to add another mailbox on macbook

- How to add mailbox macbook
- How to add new mailbox on macbook
- How to add shared mailbox on macbook outlook
- How to add another mailbox to macbook air
- How to add mailbox on macbook pro
- How to add shared mailbox on macbook
- How to add another email to mail on iphone
- How to add email on iphone
- How to add account to mail on iphone