September 12, 2025—Starting September 30, 2025, Microsoft Teams will begin validating
meeting join URLs. Rewritten or modified URLs may be treated as malicious, which could
interfere with email delivery and link protection features. To prevent false positives
and ensure uninterrupted access to legitimate Teams meetings, Cloud Email and Collaboration
Protection automatically bypasses URLs from teams.microsoft.com in Time-of-Click Protection.
This update helps maintain seamless meeting access while preserving accurate threat
detection—no configuration required.