I have a conference room defined as a Resource - and have set it to "Auto-accept unless busy". But that doesn't do what I "really" want -- is to not even allow people to propose a time that overlaps.
The UI is fine - it clearly indicates that time is blocked off for something else. But zimbra will still let the user submit it. Is there some hidden ldap setting I can make, to prevent this?
A workaround for this, is if I create a "conference" user and just have someone manually manage the official calendar for the meeting room. Then force users to lookup free/busy information via: