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weight, title, description, icon, date, lastmod, draft, toc
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| 174 | Why 3 Domains Are Required | The technical reason your account needs a minimum of three domains. | article | 2025-05-27T00:00:00-00:00 | 2025-05-27T00:00:00-00:00 | false | true |
Federated Enterprise requires a minimum of three domains when you sign up, and this is a technical requirement of the platform — not an arbitrary constraint.
The underlying Federated Core platform uses multiple domains in tandem to support the various services that run on your Cores. These services include unified messaging, unified storage, authentication, and other components of the Core environment. Each domain serves a distinct functional purpose in the platform's routing and service delivery architecture.
Having three separate domains ensures that services can be isolated, routed independently, and remain resilient if one domain encounters an issue. It also allows the platform to properly configure email delivery, SSL certificates, and service endpoints across your environment.
Note: If you're unsure which domains to register, choosing the free Federated Domains option at checkout gets you a compliant, fully functional three-domain setup with no additional cost or configuration required.