I'm looking for some assistance with the permissions needed to allow anonymous/public access to a mailbox in Exchange 2007 (soon to be Exchange 2010). The access needs to be able to view the calendar appointments, but not appointment specifics and must not require a login to see the contents.
I'm aware how to point people to the resouce, but haven't yet found the trick to the permissions. URL for access would be http://exchange.school.edu/owa/[mailbox_SMTP_address]/?cmd=contents&module=calendar.
Anyone accomplished this or have a recommendation?