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  "description": "Microsoft Teams will update RTMP-In port and domain requirements by mid-July 2026 to improve streaming reliability. Admins must allow outbound access to ports 50118, 50119, and domain *.rtmpingest.mcr.teams.cloud.microsoft. Existing RTMP-In events work until end of 2026; new events need updated n...",
  "path": "/m365-message-center/message/mc1387814/",
  "publishedAt": "2026-06-12T00:00:07.000Z",
  "site": "https://blog.tophhie.cloud",
  "tags": [
    "Manage RTMP-In for Teams meetings, webinars, and town halls | Microsoft Teams | Microsoft Learn"
  ],
  "textContent": "**[What and Why]**\n\nMicrosoft Teams is updating the port and domain requirements for Real-Time Messaging Protocol (RTMP)-In, which enables organizers to stream content into meetings, webinars, and town halls using external hardware or software encoders. This change improves reliability and scalability for Teams streaming scenarios.\n\n**[Rollout Schedule]**\n\n  * **General Availability (Worldwide)** : We will begin rolling out in **early July 2026** and expect to complete by **late July 2026**.\n\n\n\n**[Impact on Your Organization]**\n\n_Who is affected_\n\n  * Admins managing Microsoft Teams meetings, webinars, and town halls\n  * Event organizers who use RTMP-In with external encoders\n\n\n\n _Platforms/Services_\n\n  * Microsoft Teams (meetings, webinars, and town halls)\n\n\n\n_What will happen_\n\n  * New meetings, webinars, and town halls that use RTMP-In will require updated network access.\n  * Admins must allow the required ports and domain endpoints for RTMP-In streaming.\n  * Existing meetings, webinars, and town halls already configured with RTMP-In will continue to function through the end of 2026.\n  * RTMP-In continues to allow organizers to stream content into Teams from external hardware or software encoders.\n  * Without these updates, organizers may be unable to create or stream RTMP-In events, and newly created events may fail after **mid-July 2026**.\n\n\n\n**Required network endpoints:**\n\n  * **Ports: 50118 and 50119 (RTMP/RTMPS)**\n  * **Domain: *.rtmpingest.mcr.teams.cloud.microsoft**\n\n\n\n**[Action Required/Recommendations]**\n\n**Action required by mid-July 2026.**\n\n  * Review your organization’s firewall and network configuration.\n  * **Allow outbound access to:**\n    * **Ports 50118 and 50119 (RTMP/RTMPS)**\n    * **Domain: *.rtmpingest.mcr.teams.cloud.microsoft**\n  * Validate connectivity against official Microsoft 365 endpoint and firewall guidance.\n  * Communicate this change to your networking and IT teams.\n  * Update internal documentation if you support RTMP-In streaming scenarios.\n\n\n\n**Learn more:** Manage RTMP-In for Teams meetings, webinars, and town halls | Microsoft Teams | Microsoft Learn\n\n**[Compliance considerations]**\n\nNo compliance considerations identified. Review as appropriate for your organization.",
  "title": "MC1387814: Microsoft Teams: RTMP-In port and domain changes required",
  "updatedAt": "2026-06-12T00:00:07.166Z"
}