1. Open the Settings App
  2. Open "Mail, Contacts, Calendars"
  3. Open "Add Account"
  4. Open "Exchange"
  5. For the email line enter your "first.last@lifelinechild.org"
  6. Enter your Office365 password
  7. For description you can enter "Lifeline"
  8. Hit Next at the top
  9. Your phone should automatically find all of the necessary settings for email to work
  10. You can now select if you want to sync mail, contacts, calendars, reminders, and notes
  11. Hit Save at the top
  12. You're finished! You can now open Lifeline email through the mail app on your iPhone