ContactOffice/Mailfence is probably one of the most complete collaborative messaging solution. It includes basic and advanced messaging, calendar, address book, document and chat Since 2000 ContactOffice is the ideal solution for SME's, SOHO's but even larger corporations and universities looking to replace their traditional groupware solution in a cloud mode. ContactOffice commercialises its technology through private label versions both in public and private cloud. Following Snowden’s revelations about massive government surveillance of Internet users, it became clear that users privacy on the Internet was seriously threatened. This was unacceptable to us. We understood that users need a service which is fully dedicated to email privacy. We double-checked every line of code, hardened our servers and worked relentlessly to find a SSL certificate which does not have a US company involved in the certification chain (not that easy to find). We made it our mission to develop a user-friendly, highly trustable (based on open-source libraries) and completely interoperable encryption solution which anyone can use with other similar open-standard based solutions. As a result, we have developed and launched the simplest, interoperable end-to-end encrypted mail solution on the market, which allows all users (not just techies) to reclaim their online privacy. We're very happy to present Mailfence.com. Join the movement and help us reclaim Internet Privacy! Privacy is a right, not a feature. #privacyisaright