#335 Error message (MODIFICATION_FAILED) on reminder dismiss/snooze

[Frank Thommen]

Hi,

when I dismiss or snooze a reminder in Thunderbird 52.8.0 (on CentOS 7), I receive the error which you can see in the attached screenshot. This seems to happens only when accessing shared calendars, not when using my personal one.

Is this a configuration issue or is dismissal/snoozing of reminders of shared calendars not supported by DavMail?

Cheers
frank

[Mickael Guessant]

This is a Thunderbird/Lightning issue (snooze on read only calendars), see:
https://bugzilla.mozilla.org/show_bug.cgi?id=356002

[Frank Thommen]

The calendar is not read-only. It is shared read-write and I can edit any of the entries...but not dismiss or snooze reminders.

The bug you are referring to is 12 years old and solved since TB 6.1

[Frank Thommen]

I noticed in the DavMail log, that when I dismiss/snooze an entry in my personal calender, the log entry looks like

2018-07-06 16:24:17,186 WARN [CaldavConnection-50580] davmail.exchange.ExchangeSession - Overwritten event /users/MY_EMAIL_ADDRESS/calendar/717a36bb-34cd-4d85-a67d-838e41e0e94d.ics

while when I dismiss/snooze an entry of a shared calendar, the entry looks like

2018-07-06 16:32:21,761 WARN [CaldavConnection-50580] davmail.exchange.ExchangeSession - Overwritten event /users/CALENDER_EMAIL_ADDRESS/calendar/SUBCALENDAR_NAME/AAMkAGFhMzMxMzk3LTRhNjAtNDU0MC05MDZiLTU1MTU0N2EwMTdjOABGAAAAAACBvJEHLH-SRbE3EgKpxbDCBwARwng4ZgoyRaBWu3g5XN33AAAAAAErAAARwng4ZgoyRaBWu3g5XN33AAAAADLAAAA=.EML

So its .ics vs. .EML. Is that relevant?

Also I should probably notice, that the shared calendars are all subfolders of a main calendar.

[Mickael Guessant]

Reopen for further discussion, however it seems that the Thunderbird fix was to let users disable alarms on shared calendar => local snooze implementation is still not available.

[Frank Thommen]

I'm not sure on how to proceed here. Can/should I provide more information or do some specific testing? Is the observed *.ics vs. *.EML issue (https://sourceforge.net/p/davmail/support-requests/335/#dd27) relevant? The 403 error message looks like a http server-to-server communication problem.

In our environment we place meeting schedules in a shared calendar and having the possibility to have reminder for those events would be quite important.

[Mickael Guessant]

The ics vs EML difference is just Exchange generated id vs client generated id, no impact on snooze.

I understand your requirement to be able to use reminders on a shared calendar, however there is not much I can do with current Thunderbird/Lightning implementation that relies on a server side property.

=> your best bet is to create a new/update an existing request on Mozilla on client side reminders implementation.