<p>IDG News Service (Bangalore Bureau) Microsoft has moved its email service Outlook.com out of the preview phase, and plans a marketing campaign to boost its adoption worldwide.</p><p>The service, which claims 60 million active users since the preview was released last July, will soon start to upgrade Hotmail users to the new service, David Law, director of product management at Outlook.com, wrote in a blog post on Monday.</p><p>At launch of the preview, Microsoft said Outlook.com would eventually replace Hotmail. The migration of Hotmail users, which will be completed by summer, will be seamless, and users' @hotmail.com email address, password, messages, folders, contacts, rules, vacation replies, and other features will stay the same, with no disruption in service, Law wrote. He did not specify a date when the transition would be complete. Users won't have to switch to an @outlook.com address if they prefer not to, he added.</p><p>Microsoft is also launching a large-scale marketing campaign to promote the service worldwide, stating that it is confident that Outlook.com is ready to scale to a billion people.</p><p><a href="http://www.cio.com/article/729005/Microsoft_39_s_Outlook.com_Comes_Out_of_Preview_Phase">Keep reading...</a></p>