Hotmail, once Microsoft's main email platform, is officially dead. As of today, May 3rd, the web-based email service has been migrated to Outlook, making the Hotmail name, but not your account, obsolete.

The news that Hotmail was officially dead was announced by Microsoft via blog post. "Today, we're excited to announce that we've completed upgrading all Hotmail customers to," the computer company wrote. "Coupled with the growing organic excitement for, this has pushed us to over 400 million active accounts, including 125 million that are accessing email, calendar and contacts on a mobile device using Exchange ActiveSync."  

Although the Hotmail experience, as we know it, is officially dead, Hotmail email accounts will continue to operate as usual. Hotmail users can still be reached at, but the interface of the email service will be aligned with Outlook's newer layout.

Hotmail, officially known as Microsoft Hotmail, was previously known as Windows Live Hotmail and MSN Hotmail. One of first web-based email services, Hotmail was founded by Sabeer Bhatia and Jack Smith in 1996. Microsoft acquired the email program in 1997 for an estimated $400 million. The latest version of the now-dead system was launched in 2011.