I have a Delphi COM Add-in for Outlook (2000-2007) and am trying to find a way to register an event when an MailItem in Outlook is marked as read. I want to add an additional property to the item as/just after it is marked as read.
Does anyone have any idea how to do this using the Outlook Object Model? I am also using Add-In-Express components to help get to additional properties events.