Microsoft already gave a preview presentation back in May 2015 of its new Outlook.com. Today, it has rolled out even further where users in the US can sign up to the service to get immediate access of the new interface and whereas active users are being shifted every week.

Microsoft's shift to Outlook.com over to Office 365 offered a new interface and features, putting together 13 new themes to its email service.

The service's new look and feel is familiar, and is now mutually aligned to certain aspects of the desktop and Windows 10 versions of the Outlook App. It appears to look like the web version to Outlook of Microsoft Office 365.

The focus of the new features are emphasized on the improvement of the email experience as a whole. Such features include Clutter, where it's designed to sort ignored messages separately into a folder to keep a clean inbox.

Microsoft mentioned that Clutter could automatically teach which email to filter out overtime, or by training it to manually drag the messages in and out the folder. If filtering email isn't a user's satisfactory, just by switching Clutter off leaves it into the classic inbox.

Microsoft is also trying to improve Outlook.com's search interface. Search suggestion will help a user to automatically highlight another user's email when searching for content. Another feature called Refiner allows a user to filter out search results based on the sender, folder, date and attachments. It would even highlight search results to allow a user to see clearly what they are looking for. Although the search interface was one of Outlook.com's weak point, Microsoft managed to boldly address this.

In addition to the new Outlook.com is the add-ins. Some of this add-ins are being highlighted from Giphy, Yelp, Wunderlist, Uber, Paypal and Evernote.