Outlook.com Hits 400 Million Users

Microsoft has officially shut-down Hotmail with Outlook.com.  Microsoft said that there are now over 400 million active accounts on Outlook.com.  In the last two months, Microsoft refreshed the design of Outlook.com’s calendar and Android app.  The company also added Skype calling in Outlook.com.

“When Outlook.com came out of preview in February, it already had more than 60 million active accounts. However, Hotmail was still one of the most widely used services, with over 300 million active accounts. This made the magnitude of the process incredible, maybe even unprecedented. This meant communicating with hundreds of millions of people, upgrading all their mailboxes–equaling more than 150 million gigabytes of data–and making sure that every person’s mail, calendar, contacts, folders, and personal preferences were preserved in the upgrade. Of course, this had to be done with a live site experience that was handling billions of transactions a day.  With your help, we were able to do all of that in just about 6 weeks. We’ve spent the last few weeks ensuring that everything was completed in line with our high quality expectations,” said Outlook.com Group Program Manager Dick Craddock.

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There are now 125 million users on mobile devices.  Microsoft calls Outlook.com the fastest growing personal e-mail service.

This article was written by Amit Chowdhry. You can follow me at @amitchowdhry or on Google+ at
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