It used to be an excellent service. This company used to be focused on internet services like mail, web serching engine, wallpapers, games etc. A lot of changes happened in this company, few important people left the company including CTO and company is not focused on internet services any more. Inbox.com is a kind of orphan, it is still alive, but nobody really cares about. I think that they cancelled free service just to force current users to leave volunteerly. All other free services like wallpapers, games has been cancelled many years ago, they keep inbox.com alive just because it still makes some money.