I Started with LuxSci in 2008 to provide secure email for my clinical practice. Their suite of communication products and capabilities is remarkable and has expanded steadily during the last 12 years. But the most unique aspect of LuxSci is that they provide the most competent, responsive and personable technical support I have EVER experienced. There is not even a close second. It's that resource that makes them accessible to even small companies that require sophisticated security and privacy controls on their communications. Call them. Don't bother with anybody else."