A question which came from the Symantec Enterprise Vault Connect forums the other day deserves a little more of an answer than I originally gave. The question is:
When you retrieve an item from a shortcut using Enterprise Vault with Outlook Web Access, where is the temporary message stored?
Well the short answer is that it is stored in the users 'deleted items' folder, as hidden messages. You can see them using Outlook Spy or similar:
Another question, which is sometimes asked:
When or how are these messages cleaned up?
In OWA 2010, the Enterprise Vault extensions should clear up the message when the mail window in Internet Explorer is closed. If tracing is enabled you would see: