There's a problem with the way zimbra creates calendar events that
interacts badly with evolution as a display client for these events
(e.g., accessing a zimbra store via CalDAV).

How evolution works:
When evolution displays an event (say, in the month view), it shows a
"meeting" icon for the event (a little picture of two people) if the event is
a "meeting"; no icon if the event is an "appointment." How does it distinguish
these two types of event? A "meeting" has an ORGANIZER field in its ics
record; an "appointment" does not.

How Zimbra works:
Unfortunately, when I create an event in zimbra, it sets the ORGANIZER field
for both kinds of records. The distinction, as far as *zimbra* is concerned,
is the presence or absence or an ATTENDEE field -- no attendees for an event
mean its an appointment.

What happens:
*All* events that I create via the zimbra web interface are labelled in the
evolution display as "meetings." This really clutters up the month view -- the
meeting icon shoves a large percent of the appointment text off the day box.
If I view a large, complex calendar created in zimbra with evolution, it is
quite a mess.

If evolution required an ATTENDEES field for an event to be considered
a meeting, this would be cleared up.
    -Olin