How to set up a Microsoft 365, Exchange, or Outlook .com email on the iOS Mail app
A. If you’re on iOS less than 10, see the step by step instructions:
1. Go to your iPhone or iPad’s Settings
Click on Accounts & Passwords
Click on Add Account
2. Select Exchange
3. Enter your email address (Microsoft 365, Exchange, or Outlook.com) and a description of your account. Then Tap Next. After this, Tap Sign In.
Note: Click on Configure Manually if you need to enter server settings.
4. Now, Enter the password of the email account. Then click on Sign in.
5. The Mail app may request some permissions. Click on Accept.
6. Now, choose the services you want to sync with your iOS device and click on Save. Hurrah! You’ve successfully added your email account to your device.