Forum Discussion
how to prevent users from login to their personal office365 account?
Tenant restrictions prevent users from logging into other business tenants, but there doesn’t seem to be a way to prevent users from logging into their personal outlook accounts (e.g. hotmail).
We can block personal OneDrive by blocking specific live.com endpoints, but that doesn’t work for Outlook.
Does anyone know how to block our business users from logging into their personal (eg non business tenant) Outlook and creating a data leakage concern?
You can use a regkey or via GPO to restrict adding any further accounts in outlook!
Furthermore you can utilize IRM , AIP and conditional access to restrict forwarding, download, copy / paste, device and location restriction etc. to further enhance your security
Adam
adam deltinger Do you know if there has been any updates to this? I'm trying to find a simple way of restricting domain sign in so a user cant sign into their hotmail account from a company machine.
yanmouldyThis can be done via Group Policy:
User Configuration > Policies > Administrative Templates > Microsoft Office 2016 > Miscellaneous > Block signing into Office
Setting this to 'Org ID only' prevents personal accounts from being used
