Calendar sharing without Kopano?

raiden

Hello, I have the following setup and its working great.

php 7.3.24
Latest exim 4.94/dovecot (2.3.11.3)
Z-Push latest version of develop from git.(f7cc4efe307) [Combined, imap, caldav, carddav]
Latest Sabre-dav 4.1.3 (For CalDav + CardDav using IMAP for authenticating + sqlite for data)
2 computers with Outlook 2019

I have Outlook 2019 setup without any issues and I can view all my emails and see my subscribed imap folders plus I can see my own default Calender where I can add/remove items from it. (and see it synchronized between multiple outlook devices)

One feature/functionality that is very important is being able to share calendars with other people on my system without using Kopano. Has anyone else been able to do it? I tried looking at other documentation and googling but I couldn’t find anything. I am trying to create/simulate a global calendar for everyone to read/write by creating a test account and share that users default calendar to everyone. I tried the following.

test@example.com has a default calendar.
test2@example.com has a default calendar.
I have logged into Sabre-dav as test2@example.com and gave read/write access of the default calendar to test@example.com. [gave calendar-proxy-read+calendar-proxy-write]
Opened Outlook as user test@example.com and cannot see that calendar.

Any ideas? If this feature currently doesn’t exist in the current z-push git code (that doesn’t require Kopano) then I can see that functionality being very important to a lot of people to get added.

Thank you for your time.

bob4os

I don’t know if it is still relevant, but as far as I know, ActiveSync protocol does not support sharing calendars.

SabreDAV is able to share calendars - as you already know.

But:
With DAViCal you are able to add a “binding” (like an alias) to a shared calendar into your calendar homeset.
I think it is RFC5842 and SabreDAV does not seem to support it.
(https://sabre.io/dav/standards-support/)

Z-Push does not detect shared calendars without binding them to your homeset right now.