You can add Yahoo Mail to your iPhone by downloading the official Yahoo Mail app, or by adding your account to the default ...

To switch between inboxes, tap the Profile icon in the upper-right corner and choose an email address. Another option is to install the provider's app. Outlook and Yahoo have their own apps. This ...

To forward an email in Yahoo Mail, you'll just need to click or tap the Forwarding icon, and then enter an email address.