Source note · Web proxies and TLS inspection that break UC clients
Microsoft lists routing Microsoft 365 connections through network infrastructure that applies its own authentication, such as proxy authentication, as known to cause connectivity issues.
Checked 2026-10-14
- Vendor
- Microsoft
- Product
- Microsoft 365
- Subsystem
- network connectivity
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-14
- Checked
- 2026-10-14
Sources
- Microsoft 365 network connectivity principles — Microsoft · tier 2 current vendor documentation · Additional network considerations, bullet 4
Cite this note
APA
WarmTransfer. (2026, October 14). Web proxies and TLS inspection that break UC clients: source note tls-inspection-uc-clients-m365-proxy-auth-issue. WarmTransfer. https://warmtransfer.net/knowledge/claims/tls-inspection-uc-clients-m365-proxy-auth-issue
BibTeX
@misc{warmtransfer-claim-tls-inspection-uc-clients-m365-proxy-auth-issue,
title = {Web proxies and TLS inspection that break UC clients: source note tls-inspection-uc-clients-m365-proxy-auth-issue},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/tls-inspection-uc-clients-m365-proxy-auth-issue},
note = {Source note tls-inspection-uc-clients-m365-proxy-auth-issue, checked 2026-10-14}
}