Test the authentication process you have configured for Microsoft 365.
Steps
-
Open a new browser window and navigate to login.microsoftonline.com where you will see a redirect to an SSO portal.
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Login as a user and you should successfully authenticate to Office 365.
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Verify that the URL is
https://outlook-office365-com.btglss.net/
which means that
your Microsoft 365 traffic is going though Forcepoint ONE SSE to provide visibility and data
protection.