With Microsoft earlier today announced that the accounts are getting more secure with optional two-step verification system, the company also shared that it will be expanding international domain support for Outlook.com, allowing users to select a mail address in their preferred region i.e. @outlook address that is unique to your country.
Another update Microsoft brings in is that it will allow users sign into Outlook.com accounts using an existing alias although users have to keep a note that they have to rename accounts with an alias as it happens earlier, but with the new support the restriction being removed. The company says both updates will be rolled out completely in next few days.