In a scenario where an organization takes security as a top priority configuring device quarantine for unmanaged devices will provide a good insight into your user base as well as how secure your corporate email platform is.
Configuring Exchange Online
Launch Exchange Admin Centre https://admin.exchange.microsoft.com/#/homepage
You will now need to switch to Classic Exchange admin center due to the setting required not being visible in the modern admin center.
Select Mobile and click Edit
Tick Quarantine – Let me decide to block or allow later
Click the Add ( + ) button to add Administrators who will receive notifications when a device in quarantined.
Optional – You can include some text which will be provided to the device that has tried to add their mailbox to their personal un-managed device.
Once the policy becomes active, you will see devices become quarantined.
This concludes this post
The Author – Blogabout.Cloud