When searching email/inbox/All Documents, it should be easy/seamless to include your archive in the search
The user's archive should be treated as a seamless part of the email experience.
Searches should be able to include it with a simple checkbox (see mockup).
When used searching Search All mail via Search Toolbar is not using searching in the archives of mail.
It would be beneficial if Search All mail via Search Toolbar sought out in the mail archive of the mail box.