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.

Checked 2026-10-14

Vendor
Microsoft
Product
Microsoft 365
Subsystem
endpoint change management
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-10-14
Checked
2026-10-14

Sources

Cite this note

APA

WarmTransfer. (2026, October 14). Web proxies and TLS inspection that break UC clients: source note tls-inspection-uc-clients-m365-endpoint-change-cadence. WarmTransfer. https://warmtransfer.net/knowledge/claims/tls-inspection-uc-clients-m365-endpoint-change-cadence

BibTeX

@misc{warmtransfer-claim-tls-inspection-uc-clients-m365-endpoint-change-cadence,
  title  = {Web proxies and TLS inspection that break UC clients: source note tls-inspection-uc-clients-m365-endpoint-change-cadence},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/tls-inspection-uc-clients-m365-endpoint-change-cadence},
  note   = {Source note tls-inspection-uc-clients-m365-endpoint-change-cadence, checked 2026-10-14}
}

Read in context