1. go to Settings > Mail Contacts Calendars
  2. tap Add Account
  3. tap Microsoft Exchange
    1. enter your Email address
    2. leave Domain empty
    3. enter email address again for Username
    4. enter Password
    5. Description can be anything you want
    6. tap Next
  4. it’ll process for a moment and then bring up a new field: Server
  5. enter: m.google.com in the Server field
  6. tap Next again
  7. it should verify the information
  8. this will setup Mail Contacts and Calendars on iPhone/iPad