ContactOffice Group is a company that specializes in providing secure online communication tools, best known for its product Mailfence. Through its website https://mailfence.com/, Mailfence offers a suite of privacy-focused services including encrypted email, calendars, documents, and contacts. The service is designed to guard against unauthorized access and ensure that user data remains private and secure. Emphasizing a commitment to digital rights, Mailfence operates on the principles of security, privacy, and freedom from intrusive advertising. The platform is a popular choice among individuals and businesses looking for reliable and secure email solutions that respect user privacy.