Come for the products,
stay for the community

The Atlassian Community can help you and your team get more value out of Atlassian products and practices.

Atlassian Community about banner
Community Members
Community Events
Community Groups

No CALDAV supported??

I wanna import calendars from my OPEN-Exchange  as a CALDAV. Normaly this feature shold work since 2018. But when I try to import a new calendar in CONFLUENCE Team Calendars i can only insert a iCAL-Adress .... what am I doing wrong??

Thanks for any help.


Markus Löw

3 answers

2 accepted

0 votes
Answer accepted

would be strange, because the certificate is correct: please have a ->look

0 votes
Answer accepted
Daniel Eads Atlassian Team Jul 06, 2020

Hey Markus,

You're right - CalDav support was added in 2018. In order to check out anything that might be causing problems, I'd like to try an import on an environment that matches your versions. Could you let me know the following?

  1. Which version of Confluence you're on
  2. Which version of the Team Calendars app you have installed
  3. What database your are using (PostgreSQL, MySQL, etc) and which version if you happen to know

Daniel | Atlassian Support

Hallo Daniel,


thanks a lot for Your help! My configuration is:


  1. Confluenceversion 6.15.6
  2. TEAM CALENDAR Version 6.0.50
  3. POSTGREsql Version  9.6.14


For more details please have a look at the CONFLUENCE.PDF 


Vielen Dank


Hi Daniel,

I guess, it is an issue of a wrong certificate:

root@postgresql ~# wget
--2020-07-07 08:59:48--
Resolving (
Connecting to (||:443... connected.
ERROR: The certificate of '' is not trusted.
ERROR: The certificate of '' hasn't got a known issuer.
root@postgresql ~#

Daniel Eads Atlassian Team Jul 09, 2020

Ah, a certificate error. Using wget will use your operating system's certificate store. In the video you show, the certificate's trust is coming from the browser.

It looks like you have an Encryption Everywhere DV signed certificate. You might need to install the intermediate certificate on the server you ran wget on. The intermediate certificates can be downloaded from DigiCert here:

You can use this quick gist to install the intermediate certificate on your server.

That should at least clear the error with wget. If you've installed Confluence with the .bin installer and not changed its JRE to use your system's java, you might also need to install the intermediate certificate to the JRE's keystore. We've got instructions for doing that here, and although the article mentions Jira, the same process applies to Confluence.

Since the steps are rather involved, I won't copy them all here. Please let me know if you get stuck at any point though, and I'll be happy to help!

Dear Daniel,

thx a lot! Your help eas very usefull! my confluence-appliance can now connect vie ssl to open-x (

root@postgresql /tmp# wget
--2020-07-10 13:11:36--
Resolving (
Connecting to (||:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: [following]
--2020-07-10 13:11:36--
Reusing existing connection to
HTTP request sent, awaiting response... 302 Found
Location: [following]
--2020-07-10 13:11:36--
Reusing existing connection to
HTTP request sent, awaiting response... 200 OK
Length: 2082 (2.0K) [text/html]
Saving to: 'index.html'

index.html 100%[===============================================================================================>] 2.03K --.-KB/s in 0s

2020-07-10 13:11:36 (93.2 MB/s) - 'index.html' saved [2082/2082


and I changed the CA in Java Runtime. But still the connection is refused; but now with wrong creds as issue .... ?? Still confused and waiting for any help!screen.jpg


I forgot to mention: of course the calendar exists and the credentials are correct; I can log in with any other client.

Suggest an answer

Log in or Sign up to answer
Community showcase
Published in Jira

Online AMA this week: Your project management questions answered by Jira Design Lead James Rotanson

We know that great teams require amazing project management chops. It's no surprise that great teams who use Jira have strong project managers, effective workflows, and secrets that bring planning ...

197 views 1 6
Read article

Atlassian Community Events