Blocking O365 OWA from Unmanaged Devices

If you want to block access to Outlook Web Access in O365 from unmanaged devices you can now do that with Conditional Access in Intune. From the testing I have been doing latley it has been working well for me. Since I enabled it I havent been able to access OWA from devices that are not beeing managed.

 

block_owa

If you try to access OWA from an unmanaged device you will get this response from the service.

blocked_access_ca

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