Rockliffe Systems is a technology company that specializes in providing advanced email server solutions and security software. They are known for their flagship product, MailSite, which is a secure and scalable email server platform designed to meet the needs of small to large enterprises. Rockliffe Systems focuses on delivering high-performance, easy-to-manage, and cost-effective products that enhance email communication and security. Their solutions are designed to be robust enough to handle the demands of modern email traffic and security threats, ensuring reliable and efficient operations for businesses.