Kolab is an unified communication and collaboration system, composed of a server-side daemon which offers storage and synchronization capabilities for contact, calendar, mail and file data. Clients can use several well defined formats like vCard, iCal, XML, IMAP and LDAP to communicate with the Kolab server.
Kolab server is available in the AUR via the AUR package.
At first, Kolab requires you to use a FQDN (fully qualified domain name), therefore adjust and append:
127.0.0.1 kolab.example.org kolab
Besides the basic Roundcubemail installation and configuration, this AUR plugin package is needed for advanced groupware functionality.
Test and start the server
systemctl enable kolabd systemctl start kolabd