When most people delete items in Outlook they really mean to do it. What if someone clears their Deleted Items folder but needs something back. Then the admin must pull backups or try other tricks. If you send down this Reg entry to the machines it will Give you a Recover Deleted items option in Outlook.
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Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\Client\Options]"DumpsterAlwaysOn"=dword:00000001
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