Microsoft 365 Copilot now offers Domain Exclusion, allowing admins to exclude up to 1,000 domains from web grounding to ensure responses align with organizational policies. Available worldwide from mid-July 2026, this feature requires admin configuration and affects Copilot web grounding scenarios.
Applies to: Microsoft 365 Copilot Chat
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).