Kolab is a groupware solution for emails, appointments, contacts and more.
Kolab supports mixed client environments (Outlook/KDE) because of an open storage format. Any email client speaking standard protocols can be served.
Here are some key features of "Kolab":
- Five platforms. One application
- Highly scalable
- Free and Open
- The highlights of this release are a new file cloud storage feature and CalDAV/CardDAV support for a great variety of devices, platforms and clients.
- There are also improvements and automation for multi-domain hosted environments. Shared folders can now not only be created with the kolab command line utility, but also in the web administration interface.