CalDAV and CardDAV does not connect to cPanel/Horde

[oneway]

I have three different clients, Outlook with an addon software(Caldav synchroniser), Thunderbird and OpenSync for Android. No one gives access to the caldav server which I believe is a Horde server incorporated in the cPanel. I get the same error on the CardDAV where no access is granted.

The best error answer/description I get is from the sync in the Outlook client where you can test it before you comit it:

Test settings

An error occurred while sending the request.

An error occurred while sending the request.

Unable to connect to the remote server

A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond XXX.XXX.XX.XX:2080



OK


The server provider opened up the 2080 port, but it still does not work.

Thunderbird creates a local calendar that does not sync anything from the server at all.
The Android client keeps looking for the server or terminates with, "cannot find server".

What is the problem?

What should the server provider look for to allow access to the cPanel email server?

 

[cPanelMichael]

Hello,

Could you verify what you are using for the "Server URL" when configuring the calendar or contacts in your mail client (replace the real domain name with an example)? You can find an example of what to use under the "Other Operating Systems" tab on the following document:

How to Set Up Calendars and Contacts - cPanel Knowledge Base - cPanel Documentation

Thank you.

 

[oneway]

The calendar and contacts are accessed by using
https://VPSservername.hostcompanydo...pals/[email protected]/

We are using a mix of both MAC, PC, Android, iOS.

I have tested with Thunderbird and Outlook for Windows 7 and 10 with the same result on both OS and Android Samsung S6 with OpenSync with the same result as on the Windows OS, no connection.

 

[cPanelMichael]

Hello,

Could you open a support ticket using the link in my signature so we can take a closer look?

Thank you.