Teams Clamps Down on MOERA-Only Tenants
The latest restriction on tenants using MOERA (service domain) addresses in production is that Teams will restrict external collaboration from September 2026. At this point, there is zero sense in any organization using a MOERA-only tenant for production purposes. Restrictions in Exchange Online and Teams should drive that point home, and the likelihood is that further clampdowns will follow in the future. https://office365itpros.com/2026/09/02/moera-only-tenants-external-collab/Free Teams Licenses Now Blocked for Federated Communications
Microsoft announced blocked Teams federated chat for trial tenants in June 2024. That block is now well and truly enforced. If you use an account in a trial tenant (and many flavors of these accounts exist), then you won’t be able to set up a federated chat with someone in another Microsoft 365 tenant. It’s an example of how Microsoft restricts service functionality to stop misuse. https://office365itpros.com/2024/10/09/blocked-teams-federated-chat/
