We Recommend using the Outlook app from the Google Play Store as it has more features, but you can configure it on the native Android app. Both options are below
Set up Office 365 Account on the Outlook App (RECOMMENDED)
Open Outlook for Android. The icon looks like this:
If you haven’t already, you can download Outlook for Android from the Google Play Store here.
Tap Get Started if it’s your first time.
Or, go to Settings > Add Account > Add Email Account.
Enter your full email address, then tap Continue.
Enter your email account password and tap Sign In or Next.
NOTE: The sign in screen may look different for you depending on your email provider.
Enter your password for your email account.
If you have 2-step verification turned on, identify yourself using the method you chose (6 digit code, phone, or using the Microsoft Authenticator app
Outlook may request permission to access your calendar, contacts, etc. Tap Yes or Allow.
You’re now ready to use Outlook for Android!