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lowEntraDomain Managementnew featurelearn_sharepoint · May 6, 2026
Add or replace a onmicrosoft.com fallback domain - Microsoft 365 admin
Microsoft 365 now supports adding or replacing onmicrosoft.com fallback domains, allowing administrators to manage domain configurations more flexibly. This enhancement provides better control over authentication and authorization settings within the Microsoft 365 environment.
“Learn how to add a new onmicrosoft.com domain and set it as your fallback domain in Microsoft 365. Follow step-by-step instructions to get started.”
View original article →Identity
authenticationauthorization
Security
cloud_securityidentity_security
Audience
admin
Environment
cloud
Ontology Topics
AZ-104SC-300
Classification confidence: 95%
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