Can I use my Android, iOS mail client after completing my Duo setup?

Only applications that support Microsoft's Modern Authentication libraries are able to prompt for Duo two-factor authentication. This is a Microsoft -- not Duo -- limitation.

Mobile applications that support Modern Authentication libraries are as follows:

  • The native Mail app on iOS 11.x+
  • Microsoft Outlook app on iOS version 10.x and greater
  • Microsoft Outlook app on Android

Note: If your smartphone mail app keeps prompting you for your email password, please read "Issues with email on my smartphone" under the "General Issues and Troubleshooting" tab

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