A couple of weeks ago I promised to tell you how to add fields to display the Exchange 2003 IMF SCL (spam confidence level), Sender ID value and sender's mail address in the message list.
Each of these fields uses a custom configuration file that defines the field so Outlook can display the Extended MAPI property in the message list.
Instructions and the cfg files needed to add each of these fields is at: //www.slipstick.com/exs/customfields.htm
Published January 4, 2006. Last updated on September 10, 2011.