Source note · Web proxies and TLS inspection that break UC clients
Microsoft 365 admins can deliver PAC scripts through WPAD or GPO so that Microsoft 365 requests bypass the proxy and use direct internet connections.
Checked 2026-10-14
- Vendor
- Microsoft
- Product
- Microsoft 365
- Subsystem
- proxy configuration
- 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 · Assess bypassing proxies, traffic inspection devices, and duplicate security technologies > PAC (Proxy Automatic Configuration) scripts
Cite this note
APA
WarmTransfer. (2026, October 14). Web proxies and TLS inspection that break UC clients: source note tls-inspection-uc-clients-m365-pac-bypass. WarmTransfer. https://warmtransfer.net/knowledge/claims/tls-inspection-uc-clients-m365-pac-bypass
BibTeX
@misc{warmtransfer-claim-tls-inspection-uc-clients-m365-pac-bypass,
title = {Web proxies and TLS inspection that break UC clients: source note tls-inspection-uc-clients-m365-pac-bypass},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/tls-inspection-uc-clients-m365-pac-bypass},
note = {Source note tls-inspection-uc-clients-m365-pac-bypass, checked 2026-10-14}
}