Zimbra

Zimbra and CalDAV has been tested with the open source version and self certificates. It should work on the paid edition as well.

When using CalDAV with Zimbra the following may help when completing the settings. Initial settings and checking of the Zimbra server are faster when using WiFi or Internet pass though connection on your Android Device.

Server: the URL of your Zimbra server

e.g. zimbrahost.example.com[:port][path]

Use SSL yes/no – normally yes

User Name: your email address/username

Password: your password

Once the form is filled, press OK

It will then to connect to Zimbra and list your calendars and task lists.

Calendar Colour is set in Zimbra, you have the option to change it in CalDAV.