Keeping Up With Office 365 IP Ranges

If you’re responsible for running the local network used by an Office 365 tenant to connect to Microsoft’s network, you need to know about the IP addresses and ranges used for Office 365 endpoints.
If you’re responsible for running the local network used by an Office 365 tenant to connect to Microsoft’s network, you need to know about the IP addresses and ranges used for Office 365 endpoints.
People sometimes complain about Office 365 network performance. The root cause is unlikely to be in Microsoft’s network. It is much more likely to be in the “last mile” to the user device.