SOGo: SOGo (open source groupware) SOGo: SOGo: SOGo is a fully supported and trusted groupware server with a focus SOGo: on scalability and open standards. SOGo is released under the GNU SOGo: GPL/LGPL v2 and above. SOGo: SOGo: SOGo provides a rich AJAX-based Web interface and supports multiple SOGo: native clients through the use of standard protocols such as CalDAV, SOGo: CardDAV and GroupDAV, as well as Microsoft ActiveSync. SOGo: SOGo: Homepage: https://sogo.nu