The correct address seems to be [url]http://www.opera.com/products/desktop/m2/[/url]
I don't use it but it seems to be a (kind of a) free "Ms Outlook", isn't it ? I mean the same functionality as the Microsoft program, as far as I see from the screenshots. But you have your own email account somewhere, this is just the client, as far as I understand.
all best,
radu