The Financial Times mentions ClearContext in their article on ATOS Origin, a company that is going to ban email for internal communication by 2014 (must register to view):
“Conventional email programs and newer cloud-based services such as Gmail let users organise incoming email using folders and filters. But most people cannot be bothered or do not know how to set up the filters, says Sara Radicati, CEO of analyst firm Radicati Group.
That has spurred the development of “inbox management solutions” that automate the filtering.
For example, ClearContext offers a plug-in for Microsoft Exchange that highlights important email and automatically files unimportant email from automated senders. In similar vein, Google recently added a “priority intray” feature to Gmail that tries to guess which emails are most important.