Proper way to block an employee from using cell phone to get email

[johnbor]

Is there a way to block a employee from using their cellphone from obtaining their office 365 mail. Since the device is not company owned, just want them to have access to there office computer that uses outlook 2013. I seen a list of items in the admin panel of office 365 but not sure which one would block the non approved item. the mobile device shows no items for that employee

[#2]

It depends on the app, generally speaking you want to block ActiveSync and Outlook mobile. Read here for more details: https://docs.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/outlook-for-ios-and-...