Body
Issue/Question
I recently set up Duo Multi-Factor Authentication (MFA) and noticed that my email is no longer syncing on my smartphone
After I installed the Duo Mobile app, my phone keeps prompting me for my password
I can't read my email on my phone because it doesn't recognize my password
My email on my computer is not updating after setting up Duo
Environment
- Duo Mobile
- USD Email
- Mobile email
- Mobile Devices
Cause
When Duo Mobile was activated, older applications using Basic Authentication no longer work. Microsoft email requires Modern Authentication to use MFA.
Resolution
These mobile applications support Modern Authentication
- Native Mail app on iOS 11.x+
- Outlook Mobile on iOS and Android
For iOS 10.x or older, Setup Outlook Mobile App
For newer iIOS devices, Remove and Re-add your email account
Note: Outlook Mobile is the only supported method for syncing email to mobile devices