You can set up multiple email accounts and set your inbox to show messages from a single account or a combined view.
The first time you open the Email app, you are prompted to add an account. You can also add accounts later.
>
Email.
> Settings >
Add account.
To change your inbox view, next to the email account name, touch
and select a single account, a combined view, or a folder.
Settings.
> Remove account.global-en-us-en-us-3213-42