Unable To Share Calendars With Exchange 2019 (Only new mailboxes affected)
Does someone have some advise. For some reason all new mailboxes created can no longer share calendars.
When they do, it's telling them: Calendar sharing is not available with the following entries because of permission settings on your network?
From what I could see it seems as though outlook does not have access to the contact lists correclty. Cause in webmail you can share cal's but in the outlook UI they cannot.
Is there any way to fix it? Or find the cause?