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Hi there!
We are currently in the process of migrating our Android and iOS Smart devices onto Microsoft Intune. We are looking to deploy the outlook app to these devices but are running into authentication errors during sign in.
We currently do not use Exchange online but rather have Exchange on-prem. I can see that the outlook app is behaving differently on an Intune managed device as compared to a normal device, as its already pre-populating the registered users email address and restricting us to sign in through office 365 only (instead of being able to sign in through exchange). Unfortunately, this will not work for us due to not being on exchange online.
From the screenshot provided, it seems like we are one of the organisations that utilise Office 365 features and an exchange on prem solution. I've tried to override the authentication error by using app configuration policies targeted to the outlook app to see if I can resolve this through applying Basic Authentication as opposed to Modern, but have had no luck.
I'm hoping somebody has an idea on what we can do to resolve this? Is there some sort of connector to link Office 365 to Exchange On-prem or any other solution which does not require migrating to Exchange Online? I really am trying to avoid using Native Mail applications but may need to resort to this if no solution is found.
Thanks for your help
@Faizan Iftikhar (Mobile Telecoms Project Lead) Thanks for posting in our Q&A.
For this issue, it is suggested to check if there is any app configuration policy about Outlook deployed to this iOS device via intune. If yes, please check if there is any setting configured to control accounts, such as IntuneMAMUPN.
https://learn.microsoft.com/en-us/mem/intune/apps/app-configuration-policies-use-ios#allow-only-configured-organization-accounts-in-apps
@Faizan Iftikhar (Mobile Telecoms Project Lead) Is there any other assistance that we can provide? If you have any questions or concerns on the recent information I've provided you, please don't hesitate to let me know.