Microsoft Redirects M365 and Teams Web Users to New cloud.microsoft Addresses by October
Updated
Updated · Computerworld · Sep 11
Microsoft Redirects M365 and Teams Web Users to New cloud.microsoft Addresses by October
3 articles · Updated · Computerworld · Sep 11
Summary
Early October is Microsoft’s target to finish redirecting M365 web users to copilot.cloud.microsoft and Teams users to teams.cloud.microsoft, with the Teams shift already under way and M365 newly added.
Client devices, proxies, firewalls, secure web gateways and other enterprise controls may need updates so users can reach the new destinations without disruption.
Microsoft said companies that blocked the Copilot address to stop personal-account access should use TenantRestrictions instead and check their environments against Microsoft 365 Copilot network requirements.
Dec. 31, 2026 is the latest possible extension date for limited Teams exceptions; after that, Microsoft said no further delays will be allowed.
With Microsoft's strict October deadline looming, could your company's outdated network blocks trigger a massive Teams and Copilot blackout next month?
Why is Microsoft forcing enterprises to abandon traditional network blocking for identity-based controls just weeks before the final domain migration?
If a unified Microsoft domain enhances security, does it also create a catastrophic single point of failure for global enterprise communications?