Microsoft is planning to consolidate its Microsoft 365 apps under a single domain, cloud.microsoft, to make it easier for users to find the apps they need. The move will allow users to access apps such as Outlook and Teams using URLs like "outlook.cloud.microsoft" and "teams.cloud.microsoft". The transition will start with new services, while existing workloads will be moved over at a slower pace. Microsoft says that in most cases, users won't need to do anything to keep using the apps.
„Initially, only net-new services will be deployed on the cloud.microsoft domain. Existing workloads have a broader range of implications to consider and will transition at a slower pace. In most cases, no customer action will be needed to continue using Microsoft 365 workloads the same way you do today. Admins seeking to update their allow lists will find that *.cloud.microsoft has already been added to the official list of Office 365 URLs and IP address ranges , and end users will find that existing links and bookmarks will eventually redirect them automatically to the new domain.“
1 What about workloads beyond Microsoft 365?
The current announcement is limited to Microsoft 365. We will share plans for other services in the future.
2 Why not microsoft.com?
The microsoft.com domain currently hosts a wide variety of content: not just Software as a service (SaaS) apps, but also marketing, support, e-commerce, and more. Keeping SaaS experiences isolated in their own domain space establishes a clean security boundary for our compliant authenticated experiences and enables simplified endpoint allow-list management for admins. There are also anti-spoofing and integrity benefits to hosting such experiences on an exclusive, purposefully-managed TLD like .microsoft vs. a generic TLD like .com.
3 Is microsoft.com going away?
No. Microsoft.com will continue to be used for non-product experiences such as marketing, support, and e-commerce. Only authenticated, user-facing product experiences will be hosted on cloud.microsoft.