Can o365 mail be locked down to only mobile devices

Yes, it is possible to lock down Office 365 mail to only allow access from mobile devices. Here are some ways to achieve this:

  1. Mobile Device Management (MDM) policies: You can create MDM policies in the Office 365 admin center to control which devices can access your organization's email. You can specify that only mobile devices (e.g., iOS, Android, or Windows) can access email, and block access from desktop computers or other devices.
  2. Conditional Access policies: Conditional Access is a feature in Azure Active Directory (Azure AD) that allows you to control access to your organization's resources based on user and device properties. You can create a Conditional Access policy that requires mobile devices to access email, and blocks access from other devices.
  3. Azure AD device-based policies: Azure AD device-based policies allow you to control access to your organization's resources based on device properties. You can create a policy that requires mobile devices to access email, and blocks access from other devices.
  4. Office 365 Mobile Device Management (MDM) settings: You can configure Office 365 MDM settings to control which devices can access email. For example, you can set up a policy that requires devices to be enrolled in MDM before they can access email.
  5. App-based restrictions: You can use app-based restrictions to block access to email from specific devices or device types. For example, you can use the Office 365 Mobile App Policy to block access to email from desktop computers.

To implement these restrictions, you'll need to:

  1. Sign in to the Office 365 admin center.
  2. Go to the "Settings" or "Admin" section.
  3. Look for the "Mobile Device Management" or "Conditional Access" section.
  4. Create a new policy or edit an existing one.
  5. Configure the policy to require mobile devices and block access from other devices.
  6. Apply the policy to your organization.

Keep in mind that implementing these restrictions may require some technical expertise and may have some impact on your users' experience. It's recommended to test the policies in a pilot group before rolling them out to your entire organization.