Managing Microsoft 365 endpoints

Publisher

Microsoft

URL

https://learn.microsoft.com/en-us/microsoft-365/enterprise/managing-office-365-endpoints

Published

2026-06-26

Updated

unknown

Accessed

2026-10-14

HTTP status

200

License

Microsoft Learn terms of use; no-redistribution; short excerpts and locators only

Source notes citing this source

• Microsoft states that among proxy and perimeter functions, TLS Break and Inspect creates the largest latency, and that proxy authentication and reputation lookup can also degrade performance. in context
• Microsoft usually publishes changes to Microsoft 365 IP addresses and URLs near the last day of each month, and aims for 30 days notice before a service goes live on an added endpoint. in context
• The Get-PacFile PowerShell script generates two PAC file types: type 1 sends Optimize endpoint traffic direct and everything else to the proxy, and type 2 sends both Optimize and Allow endpoint traffic direct. in context
• Microsoft states that TLS break and inspect and proxy authentication are incompatible with both the Optimize and Allow categories of Microsoft 365 endpoints, so Allow endpoints sent to a proxy must be listed there to bypass further processing. in context
• Microsoft recommends calling the /version method of the Microsoft 365 IP Address and URL Web Service once an hour, and fetching /endpoints or /changes only when the version changes. in context

Cite this source record

APA

WarmTransfer. (2026, June 26). Managing Microsoft 365 endpoints. WarmTransfer. https://warmtransfer.net/knowledge/sources/ms-learn-managing-m365-endpoints

BibTeX

@misc{warmtransfer-ms-learn-managing-m365-endpoints,
  title  = {Managing Microsoft 365 endpoints},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/ms-learn-managing-m365-endpoints},
  note   = {Microsoft, accessed 2026-10-14}
}