Hi,
I had several synchronisation issues with Zentyal (4.1) and Android calendar in the past.
Recently - as to say yesterday - I stumbled over
http://www.sogo.nu/fr/nc/support/faq/article/calendar-synchronization-issues-on-android.html:
"If you experience issues when synchronizing calendars on Android using CalDAV-Sync from DMFS (or any other CalDAV client), make sure you are using "WOUseRelativeURLs = YES" in your SOGo defaults."
In order to implement this setting within Zentyal, it is *not* sufficient to alter the /etc/sogo/sogo.conf configuration file though (because it is rewritten by Zentyal)...
So I did this modification within /usr/share/zentyal/stubs/openchange/sogo.conf.mas and added the line
WOUseRelativeURLs = YES;
(Don't miss the ';' at line end!)
Furthermore for Windows Mail Clients (i.e. Windows 10 Mail and Outlook 2013), I assured, that the used protocol is Exchange/ActiveSync.
For my environment, this was the solution...
But it would be really nice, if that setting "WOUseRelativeURLs = YES;" could find it's way to Zentyal Defaults.
(** If any Zentyal stuff reads this, please treat this as a feature request **)
Regards,
Ludwig
PS: I've set up an appointment to walk my dog with Windows 10 Mail two hours ago and was just reminded by my Android