Corona Energy the leading commercial energy supplier to British based businesses. E-mail has become a critical application for most businesses; many clients now have an expectation of closing deals and issuing instructions via e-mail. Corona Energy uses a network of remote workers to handle face to face meetings with clients; all risks to Corona Energy's e-mail service need to be mitigated. Certain e-mails are time critical and they need to know exactly if and when they were sent. Corona Energy's e-mail needs to be highly secure, traceable and reliable. They chose Sensical to overcome these challenges. The result of choosing Sensical were costly bandwidth usage has dropped by 15% and statistical information on e-mail filtering and the ability to change configuration are in real time.