Kalob integrates (web)mail, calendar, todo, filesharing...
In basis it is a combination of well known and solid opensource software, including Postfix, MySQL and Roundcube webmail for example.
Nothing to add, great documentation at
https://docs.kolab.org/installation-guide/ubuntu.html ... for a single all-in-one server setup
Scale down (for small environments)
Not really needed, but the number of daemons can be drastically reduced.
Change
/etc/cyrus.conf
in order to support "modern" imap with STARTTLS only.
- disable
pop3
, pop3s
, imaps
Restart cyrus with
service cyrus-imapd restart
Trim down the number of apache daemons in
/etc/apache2/mods-enabled/mpm_prefork.conf
.
- StartServers 1
- MinSpareServers 2
- MaxSpareServers 3
Restart apache with
service apache2 restart
walleced?
Scale out to the enterprise!
For SOHO a single server will be sufficient in most cases, but for larger organization you want to have a fully scalable setup. Kolab consists out of about 10 daemons that can all
https://docs.kolab.org/deployment-guide/multi-server.html#deployment-multi-server-for-each-service