New answers tagged calendar
You could use meeting invitations with an auto-accept rule, and use WebDAV to publish the Read-Only access to the calendar. I found this - http://www.slipstick.com/outlook/calendar/autoaccept-a-meeting-request-using-rules/ This way, you don't have to worry so much about the security of the calendar as much as authenticating the source of the meeting ...
It turns out the users being affected were accessing up to 30 calendars in any one session. For some reason, the outlook clients were saturating all available connections to the server and then once reaching the limit, would produce the symptoms identified. The issue was resolved with modifying the throttling policy on the exchange server.
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