If you have not already installed the Gmail app, open the App Store app and search for "Gmail". Locate the app entitled "Gmail - Email by Google" and tap the "Get" button next to it.
Open the Gmail app and tap "Sign in" if prompted, then tap "Add account" on the following screen.
Select "Google" from the list of providers. A popup will tell you that "Gmail" wants to use"google.com" to sign in - tap "Continue".
Enter your SSU email address in the "Sign in" field and tap "Next".
You will now be prompted to log into your account again via Online Services. Enter your username (without the '@sonoma.edu') and password, and tap "Login".
Once logged in, you should now see your SSU email account appear in the list of accounts. Make sure that the slider next to it is green, and tap "Done".
Gmail will ask you if you want to turn on Notifications. Tap "Allow" or "Don't Allow" depending on your preference.
You may be shown a splash screen that says "Gmail has a fresh new look." Tap "Next", and you will then be asked to choose between 3 different views that show varying levels of detail. Tap "OK" once you've made your selection.
Your email should now be all set up! If you have other accounts on the Gmail app, you can tap the circle with your initial in the top-right of the screen to switch between them.
If you want to sync your Calendar items and Contacts to your device as well, you can open your Settings app, scroll down to "Passwords & Accounts" and tap it.
Tap "Add Account", then select Google from the list that follows.
Just as you did earlier, you will need to sign into your Google account. Enter your email address and tap "Next" when prompted, then sign into your SSU Online Services using your username and password. Tap "Login" once you're done.
Make sure Contacts and Calendars are both toggled ON in the list that follows, and that Mail is toggled OFF. Then tap "Save". Your calendar items and contacts should now populate locally on your iOS device.