Hello,
I found the answer myself, sogo-tools already has this feature. If
anybody is interested, to subscribe another user to a calendar:
sudo -u sogo sogo-tool manage-acl subscribe user1 Calendar/personal user2
to subscribe user2 to the personal calendar of user1
On 07.06.19 17:08, "tim.ban
Dear SOGo,
as mentioned here:
https://lists.inverse.ca/sogo/arc/users/2017-02/msg00065.html
"... unfortunately the user still has to subscribe manually to the
resource..."
So, if I grant userX access to a calendar/address book of userY, userX
still has to subscribe to this calendar.
If I could