SUMMARY Using the details from: https://www.fastmail.help/hc/en-us/articles/1500000278342-Server-names-and-ports#calendar KOrganizer throws an error "Resource not found (404)" when trying to get a list of calendars on the server (caldav.fastmail.com). The same thing happens for contact with carddav.fastmail.com STEPS TO REPRODUCE 1. Open Settings, General, Calendars and add a new calendar account 2. Enter Fastmail app password information 3. Try to fetch calendars from caldav.fastmail.com OBSERVED RESULT "Resource not found (404)" EXPECTED RESULT A list of calendars SOFTWARE/OS VERSIONS Linux/KDE Plasma: 24.08.1 KDE Plasma Version: 6.1.5 KDE Frameworks Version: 24.08.1 Qt Version: ADDITIONAL INFORMATION
This is probably fixed in frameworks 6.12 (which will be released in mid-March)