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Microsoft 365 from GoDaddy Help

Enable modern authentication for iOS, iPadOS and macOS devices using Apple Mail or Outlook for Mac

Microsoft is disabling Basic authentication for Exchange Active Sync (EAS) and Exchange Web Services (EWS) in Exchange Online. Basic authentication is an outdated industry standard with increased security risks from attackers capturing user credentials.

Anyone in your organization with an iOS, iPadOS or macOS device that uses Apple Mail or Outlook for Mac must enable modern authentication, or OAuth 2.0. It's more secure than Basic authentication and supports multi-factor authentication (MFA) with modern methods like one-time text messages and authenticator apps.

To find out what you need to do, select your email platform and device:

If you can't follow the steps on your iOS or iPadOS device, troubleshoot common issues:

I'm using Outlook on a Mac computer

After Basic authentication is disabled for your organization, Outlook may prompt you to re-enter your Microsoft 365 email password, which will switch your device to modern authentication automatically. Your computer must be using macOS version 10.15 or later.

If you can't see your email or aren't prompted to re-enter your password, removing and re-adding your account in Outlook on your computer will enable modern authentication:

  1. To remove your account from Outlook for Mac, open the Outlook app on your computer.
  2. In the upper-left corner, select Outlook, then Preferences, and then Accounts.
  3. Select an account, and then (minus).
  4. To confirm you want to remove your account, select Sign Out.
  5. To re-add your account to Outlook, in the upper-left corner, select Outlook, then Preferences, and then Accounts.
  6. Select + (plus), and then New account.
    • You might need to choose your account type as Work or school (not Personal) to continue.
  7. Enter your email address, and then select Continue.
  8. Enter your email password, and then select Sign in.
  9. If your admin enabled multi-factor authentication (MFA), verify your account or set up the Authenticator app.
  10. Select Done.

After removing and re-adding your email account, it’ll automatically start using modern authentication.

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I'm using Apple Mail on a Mac computer

After Basic authentication is disabled for your organization, Apple Mail may prompt you to re-enter your Microsoft 365 email password, which will switch your device to modern authentication automatically. Your computer must be using macOS version 10.15 or later.

If you can't see your email or aren't prompted to re-enter your password, removing and re-adding your account in Apple Mail on your computer will enable modern authentication:

  1. To remove your email from Apple Mail, open the Mail app on your computer.
  2. In the upper-left corner, select Mail, then Settings, and then Accounts.
  3. Select an account, and then — Remove.
  4. To re-add your account, in the upper-left corner, select Mail, and then Add Account.
  5. Select Microsoft Exchange, and Continue.
  6. Complete the sign-in process using your Microsoft 365 email account.
    • You might need to choose your account type as Work or school (not Personal) to continue.
    • For more help re-adding your account, see how to set up Apple Mail on a Mac.

After removing and re-adding your email account, it’ll automatically start using modern authentication.

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I'm using the Apple Mail app on an iOS or iPadOS device

Based on your version of iOS or iPadOS, you'll need to take a few steps to enable modern authentication.

  1. On your device, go to the Settings app.
  2. Tap General, then About, and then iOS version (On an iPad, after you select About, you might see your iPadOS version listed as Software Version).
  3. Based on your version of iOS or iPadOS, select the appropriate tab, and then continue to follow the steps:

    1. After Microsoft disables Basic authentication for your organization, the Apple Mail app will prompt you to re-enter your Microsoft 365 email password.
    2. Complete the sign-in process using your Microsoft 365 email account.
      • You might be asked to grant some permissions. To continue using your email on your device, select Accept. If you're an admin, select the checkbox next to Consent on behalf of your organization so your other users don't see this prompt.
      • For more help re-adding your account, see how to set up Apple Mail on an iPhone or iPad.
    1. Upgrade to the latest version of iOS or iPadOS on your device (15.6 or later).
    2. After Microsoft disables Basic authentication for your organization, the Apple Mail app will prompt you to re-enter your Microsoft 365 email password.
      Note: You might be asked by the Apple Mail app to re-enter your password before upgrading your device to the latest iOS version. However, you need to upgrade to the latest version before your password is accepted.
    3. Complete the sign-in process using your Microsoft 365 email account.
      • You might be asked to grant some permissions. To continue using your email on your device, select Accept. If you're an admin, select the checkbox next to Consent on behalf of your organization so your other users don't see this prompt.
      • For more help re-adding your account, see how to set up Apple Mail on an iPhone or iPad.

After finishing the sign-in process, your device will automatically start using modern authentication.

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I re-entered my password, but Apple Mail is still prompting me

If the Apple Mail app keeps asking you to re-enter your password, you must go through your device settings.

  1. Go to the Settings app on your device.
  2. Scroll down. Tap Mail, and then Accounts.
  3. Tap your email account, and then select Re-enter Password.
    example godaddy account with re-enter password button
  4. Enter your password and complete the sign-in process. If you're still asked to re-enter your password, sign in to Outlook on the web to verify that it's correct or reset it.
    • You might be asked to grant some permissions. To continue using your email on your device, select Accept. If you're an admin, select the checkbox next to Consent on behalf of your organization so your other users don't see this prompt.

When you're finished, your device will automatically start using modern authentication.

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I can't upgrade to the latest iOS or iPadOS version

If you're using iOS or iPadOS version 15.5 or earlier and can't upgrade to the latest version, you must remove and re-add your email account. Your device must be using iOS version 11 or iPadOS version 13.1 or later.

  1. To remove your email, go to the Settings app on your device.
  2. Scroll down. Tap Mail, and then Accounts.
  3. Tap your email account, then Delete Account, and then Delete from My iPhone or Delete from My iPad. Your email account will be removed from your device.
  4. To re-add your email, go to the Settings app on your device.
  5. Scroll down. Tap Mail, and then Accounts.
  6. Tap Add Account, and then Microsoft Exchange.
  7. Enter your Email and a Description, and then tap Next.
  8. Enter your Password, and then tap Sign In. (You might need to choose your account type as Work or school, not Personal, to continue.)
  9. You might be asked to accept permissions. To continue, tap Accept. If you're an admin, select the checkbox next to Consent on behalf of your organization so your other users don't see this prompt.
  10. After your email account's verified, confirm what mail-related data you want to sync with your device.
  11. Tap Save. Your account will be re-added to your device.

After removing and re-adding your email account to your device, it'll automatically start using modern authentication.

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