For Seniors: Add an E-Mail Account to Your iPhone 4S
You can add an iCloud, Gmail, Yahoo!, AOL, or Windows Live Hotmail account to your iPhone 4S. You can add one or more e-mail accounts, including the e-mail account associated with your iCloud account, using iPhone Settings.
If you have an iCloud, Gmail, Yahoo!, AOL, or Windows Live Hotmail account, iPhone pretty much automates the setup.
To set up iPhone to retrieve messages from your e-mail account at one of these popular providers, first tap the Settings icon on the Home screen.
In the Settings dialog, tap Mail, Contacts, Calendars. The settings shown in the following dialog appear.
Tap Add Account. The options shown in the following dialog appear.
Tap iCloud, Gmail, Yahoo!, AOL, or Windows Live Hotmail. Enter your account information in the form that appears.
After iPhone takes a moment to verify your account information, you can tap any On/Off button to have Mail, Contacts, Calendars, or Reminders from that account synced with iPhone.
When you’re done, tap Save. The account is saved, and you can now open it using Mail.