Sync error with Calendar app (OSX) / iCal protocol



  • Hi,

    Since a few weeks I am having a persistent problem with the synchronization of the OSX Calendar app and Kopano. The synchronization fails with the answer “500” and “CalDAVAccountRefreshQueueableOperation” from the server, according to that program.

    I was able to get more details on the error by increasing log_level to 6 and following the log with “tail -f /var/log/kopano/ical.log”. In fact, there seems to be one calendar item causing the issue:

    https://serveraddress:8443/caldav/username/Inbox/040000008200E00074C5B7101A82E0080000000000D92C7CA381CF010000000000000000010000004FFE8E606C9F4B808C52C528E57D3546.ics

    The content of that ics file, which can be made available by simply downloading it with a browser, is just:

    BEGIN:VCALENDAR
    VERSION:2.0
    PRODID:-//Kopano//8.3.1-35//EN
    CALSCALE:GREGORIAN
    END:VCALENDAR

    This seems to be enough to cause the iCal server of Kopano to stop with the errors:

    Thu Aug 10 22:44:27 2017: [error ] [13099] Error converting mapi message to ical, error code: 0x8004011b corrupt data
    Thu Aug 10 22:44:27 2017: [debug ] [13099] Unable to process report multi-get: 0x8004011B
    Thu Aug 10 22:44:27 2017: [error ] [13099] Error processing REPORT request, error code 0x8004011b corrupt data
    Thu Aug 10 22:44:27 2017: [debug ] [13099] > HTTP/1.1 500 Internal Server Error

    Is there a way to simply remove that single entry from Kopano by its ID? It has no subject or other way to identify.

    Thank you in advance!



  • PS: I have already fun the kopano-fsck tool on any calendar entries in the inbox of that user. This did not affect the error.



  • Does nobody here know how to eliminate a single calendar entry by its internal ID?


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