UPDATED 6:37 AM EST, February 19, 2013
SAN FRANCISCO (AP) — Microsoft is so confident it has the Internet's best email service that it is about to spend at least $30 million to send its message across the U.S.
The barrage begins Tuesday when Microsoft's twist on email, Outlook.com, escalates an assault on rival services from Google Inc., Yahoo Inc., AOL Inc. and a long list of Internet service providers.
