topic Re: CalDAV connection to TalkTalk calendar on Ubuntu (Linux) Evolution in Email

CalDAV connection to TalkTalk calendar on Ubuntu (Linux) Evolution

andersonmu — Thu, 07 May 2026 13:03:52 GMT

Can anyone advise the correct URL to use for connecting Evolution on Ubuntu 24.04 to my TalkTalk calendar via CalDAV? None of the URLs I've found on my TalkTalk webmail account seem to work (either fail completely or report authentication failure, with correct email and passwords entered).

Re: CalDAV connection to TalkTalk calendar on Ubuntu (Linux) Evolution

ferguson — Thu, 07 May 2026 14:00:58 GMT

Pending any comments here, you may do better to reach out to a Linux community.

Re: CalDAV connection to TalkTalk calendar on Ubuntu (Linux) Evolution

andersonmu — Wed, 20 May 2026 13:32:54 GMT

Hi, I've been in touch with the Linux community, and they have done thorough testing.

The issue appears to be that the TalkTalk servers are not permitting access for Evolution. To quote the final conclusion from the technical discussion: "...the Talk Talk server rejects access based on the User-Agent header. To make it work, you need to reach the server admins and ask them to allow also Evolution."

Here is the link to the full discussion: https://discourse.gnome.org/t/evolution-talktalk-caldav-calendar-connection/35023

Does anyone know how I can request access for Evolution to the CalDAV server? To be clear, I have no diffculty connecting TalkTalk CalDAV to Samsung Calendar on Android, Outlook on Windows and Thurderbird on Ubuntu, but I'm trying to migrate away from Thunderbird and use the native Evolution on Ubuntu. I have no difficulty with email sync in Evolution, but CalDAV cannot connect. If there is a specific reason why Evolution is blocked, can anyone identify why that is?

Thanks for any help.

Re: CalDAV connection to TalkTalk calendar on Ubuntu (Linux) Evolution

ferguson — Wed, 20 May 2026 14:45:49 GMT

If the issue appears to be with TalkTalk then you will need to contact them directly, click on the link in my footnote for details.