Thanks for your effort to help, but this won’t work:
I don’t want to share my specific calendar, I want to share a link to “the calendar system” that each user can click to reach his/her own calendar. Just like calendar.google.com will open my calendar if I use the URL and will open your calendar if you access the URL. As said, the SOGo-link should be on a company-wide home page inside the users’ browser and in an IT knowledge base.
I thought about your sharing comment as a workaround, like “if this calendar is public, maybe this link would lead everyone into the calendar-area of SOGo”, but that didn’t work:
Maybe this is a feature request and should be posted at GitHub:
I’d like to get generic direct links for mail, calendar and contacts, that do not include the user-id, mail, etc.
eg. https://mailcow.example.com/mail, https://mailcow.example.com/calendar, https://mailcow.example.com/contacts