Forum Discussion

Iron Contributor

Sep 15, 2020

Solved

MFA and legacy auth

MFA and disabling legacy auth. what actually 'happens' on an end-users device (iPhone) 1) where the user sync mail with exchange ActiveSync - and uses the native mail client - (I'm guessing if ...

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exchange online

office 365

VasilMichev
Sep 15, 2020
Both the native Mail app and Outlook support modern auth/MFA, so you should be fine.

Taen keren

Iron Contributor

Sep 15, 2020

VasilMichev - thx, why do I see a lot of entries in the CA insight, that phones are using legacy auth. ?

ChristianBergstrom

Silver Contributor

Sep 15, 2020

Probably because of EAS.

Taen keren
Iron Contributor
Sep 15, 2020
So I’ll just disable the EAS? - Then all is good? Mail app and outlook mobile app then finds modern auth. ?
- ChristianBergstrom
  Silver Contributor
  Sep 15, 2020
  Apparently OAuth has been supported in native iOS for quite some time. Did not cross my mind.. If using the native app reconfiguring would be required and not in Outlook for iOS.
  
  See this topic that explains it well https://community.spiceworks.com/topic/2282776-ios-native-mail-app-modern-authentication?page=1#entry-8934856
  - Taen keren
    Iron Contributor
    Sep 15, 2020
    ChristianBergstrom - thx, if I look at the link there's this below - but never heard the Get- cmdlet actually sets a setting ?!
    
    Get-OrganizationConfig | Format-Table Name,OAuth* -Auto