May 28 2018 01:46 PM
May 28 2018 02:02 PM
Microsoft Maintains their IP addressing on this XML file : https://support.content.office.net/en-us/static/O365IPAddresses.xml
You can either write your own powershell to parse this XML or use this one which already does it for you
May 30 2018 07:53 AM
Thank you, Prashant.
This is Microsoft maintained IP list. However, I looking for one's that we register in Azure MFA.