Android (Samsung Devices) Adding a 365 mailbox to your phone Android (Samsung)     Open the Samsung Email app and tap  Add Account  if it's your first time. Or, go to  Settings  in the app >  Add account .   Enter your email address and password. Tap  Sign in . Note:  If the email app detects your provider, you may be redirected to a different sign in screen.   If you're prompted to select account type, choose  Microsoft Exchange ActiveSync  to sync contacts and calendars.   Tap  Yes  or  Ok  to confirm settings and permissions. What you see may vary depending on what kind of account you're setting up. Syncing email, calendar, contacts, and tasks may take a few minutes. If you see an email that says " Action Required to Sync ," open it and tap  Use another Mail app instead . If you don't see this message, skip this step.