Baïkal : Baïkal offers ubiquitous and synchronized access to your calendars and address books over CalDAV and CardDAV. Baïkal implements the current IETF recom...
pump.io : Social server with an ActivityStreams API. It's a stream server that does most of what people really want from a social network.
YunoHost : YunoHost is a server operating system aiming to make self-hosting accessible to everyone.
Mail-in-a-Box : Each Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software. It also includes contacts and calen...
The Radicale Project is a complete CalDAV (calendar) and CardDAV (contact) server solution.
