[kontact] [Bug 440750] New: Caldav and Cardav Support For Mailfence Email Service Not Working

[Kan]

https://bugs.kde.org/show_bug.cgi?id=440750

            Bug ID: 440750
           Summary: Caldav and Cardav Support For Mailfence Email Service
                    Not Working
           Product: kontact
           Version: unspecified
          Platform: Archlinux Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: contacts
          Assignee: kdepim-bugs at kde.org
          Reporter: kandelai at hotmail.com
  Target Milestone: ---

SUMMARY
I was asked on KDE's sub-reddit to open a ticket, after the contributor there
tested my claim that Kontact/Kmail's caldav/cardav support did not work with
Mailfence.com's Cardav/Caldav. He came to the same conclusion, it does not
work. I think I also ran into this problem when I used Fastmail servers/service
as well a few years back. 

There is a separate bug report opened in 2018 that looks to be ignored, asking
for TLS certificate support for Caldav/Cardav. I note that here because
Mailfence uses TLS certificates in their IMAP settings. Not sure if the issues
are related, but worth noting. That bug report is here;
https://bugs.kde.org/show_bug.cgi?id=393951

STEPS TO REPRODUCE
1. Used the DAv groupware resource
2. Entered user name and password
3. Hit the 'Add' Server Configuration, selected Cardav, and entered the remote
URL provided by Mailfence.com 
4. The Server Configuration box populates, so there is a connection, but it
never connects after hitting the OK button when performing a refresh in
Kontact/Kmail, etc. 

OBSERVED RESULT
No Caldav/Cardav connection, kind of a time-out situation.

EXPECTED RESULT
For it to fetch and push contact and calendar information

SOFTWARE/OS VERSIONS
Operating System: EndeavourOS
KDE Plasma Version: 5.22.4
KDE Frameworks Version: 5.84.0
Qt Version: 5.15.2
Kernel Version: 5.13.8-zen2-1-zen (64-bit)
Graphics Platform: X11
Processors: 6 × Intel® Core™ i5-9600K CPU @ 3.70GHz
Memory: 15.6 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 1660 SUPER/PCIe/SSE2

ADDITIONAL INFORMATION

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