Microsoft Teams is updating RTMP-In port and domain requirements to improve streaming reliability. Admins must allow outbound access to ports 50118, 50119, and domain *.rtmpingest.mcr.teams.cloud.microsoft by January 31, 2027. Existing RTMP-In events work until December 31, 2026. The feature release is currently paused.
Applies to: Microsoft Teams
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).