Due to well-known reasons, Microsoft Office 365 services in China are operated in isolation. As a result, the Internet service groups Microsoft Office 365 in FortiGate are not fully applicable to China. So an ISDB group is required specifically for Microsoft Office 365 in China.
https://learn.microsoft.com/en-us/microsoft-365/enterprise/urls-and-ip-address-ranges-21vianet
Thanks for sharing.
A NFR would be very useful here.
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