HiddenSave is an add-in for Microsoft Outlook 2000/2002 (XP)/2003. HiddenSave automatically saves every message to your hard disk before it is sent out. The saved Message File has an .msg Extension. Simply double click the .msg File to open it again within Outlook. With this you can ensure that for example every outgoing message is stored for archiving purposes in case the message accidentially gets lost (deleted) in Outlook.

Ссылка: http://www.wire..ads/wbohsave.exe