Action: Review endpoints to include in your firewall outbound allow list If your organization restricts computers on your ...

Action: Review endpoints to include in your firewall outbound allow list  If your organization restricts computers on your network from connecting to the Internet, you'll need to understand the endpoints (FQDNs, ports, URLs, IPv4 and IPv6 address ranges) that you should include in your outbound allow lists to ensure your computers can successfully use Office 365 services. See Office 365 URLs and IP address ranges.