SOGo
SOGo (formerly Scalable OpenGroupware.org ) is a groupware project with the aim to create an open- source groupware server in the sense of community.
Architecture
SOGo is a server application that is served by users, for example, in a web browser. Can you install SOGo on a Linux or BSD server. In addition to the core application, written in Objective- C, SOGo relies on proven standard components such as PostgreSQL, OpenLDAP and Apache.
The server provides the following features: