If you specify a distribution group, messages are accepted from all recipients that are members of that distribution group.
If you configure a distribution group to accept messages only from the Exchange recipient, the distribution group only receives system-generated messages.
Valid values include: None Update Copy Move Move To Deleted Items Soft Delete Hard Delete Folder Bind Send As Send On Behalf Message Bind By default, the Update, Move, Move To Deleted Items, Soft Delete, Hard Delete, Folder Bind, Send As, and Send On Behalf actions that are performed by administrators are logged.
The Audit Enabled property must be set to True to enable logging.
Logs that are older than the specified period are removed. To specify a value, enter it as a time span: dd.hh:mm:ss where d = days, h = hours, m = minutes, and s = seconds.