Manage multiple email accounts from your Android smartphone or tablet using the Gmail app. The Gmail app is not limited to Gmail accounts, you can add POP/IMAP accounts from Yahoo, Outlook.com,....etc
Here's how to add a new email account:
Open the Gmail app.
Tap on the Menu button and scroll to Settings .
Tap on Add account.
Select the type of account you want to add: Google or Personal account:
Tap on OK to access the Account Setup menu.
Enter email address and tap on Next.
NB - Tap Manual Setup choose the account type: POP or IMAP
Enter your password and tap on Next.
Configure the settings for the new account:
Tap on Next to finalize the creation of your account.