Get more out of your email with Outlook on the web. We've streamlined search to make it easier than ever to find what you're looking for, and new features like Files and attachment previews let you see your pictures and files without leaving your inbox.
To quickly change your settings so your inbox looks the way you want it to, see Change the look of your mailbox in Outlook.com and the new Outlook on the web.
To watch videos about new and updated features, see Learn more about Outlook on the web.
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Source: Outlook OWA / Office 365