Update my Microsoft 365 account to Exchange in Mail (Mac)

If you're currently using Microsoft 365 as POP or IMAP, switch it to an Exchange account. Using an Exchange account ensures your data (including mail, contacts and calendars) stays connected with your email and is recoverable from the server.

Step 1: Add your account

1. Open Mail.
2. From the menu bar, select Mail, then Preferences.
   
3. Select Accounts.
4. Select + (plus), then Microsoft Exchange, and then Continue.
   
5. Enter your Name and Email Address, and then select Sign In.
6. Select Sign In again to let Microsoft locate your account information.
7. Enter your email Password, and then select Sign In (You might need to select your account type as Work or school, not Personal, to continue).
8. If your admin enabled multi-factor authentication (MFA), verify your account or set up the Authenticator app.
9. The app will request permission to your account. Select Accept.
10. Select Done to confirm the apps you want to use with this account.

Your email account is now added.

Step 2: Disable or delete your POP or IMAP account

Once Exchange is added and no data is missing, disable or delete your POP or IMAP account.

1. From the menu bar, select Mail, then Preferences.
   
2. Select Accounts.
3. Select your POP or IMAP account, then choose whether to disable or delete your account.
   • Disable your account: Under Account Information, uncheck the box next to Enable this account.
     
   • Delete your account: Select – (minus), and then select OK to confirm you want to delete the account. After your account's deleted, your mail, contacts and calendar aren't recoverable.
     

When you close the account window, you'll only see your Exchange account listed in Mail.

More info

• Set up Exchange on your other email clients.