There are two mailbox polices that pertain to Calendar archiving.
1. In the vault admin console, expand Policies>Exchange>Mailbox
2. Double-click the policy in the right pane and choose "advanced"
3. Under the "archiving general" section there are two policies with the default settings:
Do not archive pending reminders “on”
Archive unexpired calendar events “off”
The latter one means:
With the default behavior, archiving will only occur for calendar items for appointments that have occurred in the past.
If you leave the 2 settings to default Ev will not archive reoccurring items
refer http://www.symantec.com/business/support/index?page=content&id=TECH130640
note : So as long as there is the policy not to archive expired items, recurrent meetings which still have active meetings in the future would not be archived
- dismissing a recurrent item would only dismiss the current occurrence, and this would not clear the reminder
