"However, a closer look reveals that the problem isn't
with Linux and Hotmail's interoperability, but with how Hotmail
handles browsers with "UserAgent" settings that it doesn't
recognize. The User-Agent string is sent by your browser to the Web
server hosting the site you're visiting. This character string, at
the least, identifies your Web browser to the server. It usually
also contains optional details, which are called tokens. These
typically include your operating system, language, and hardware.