How do you get to the Sent folder for the DU2 mail archive? [View all]

Clicking on DU2 Mail Archive takes me to the old Inbox, but when I click on Sent on that page it goes only to the current Sent folder for DU4 and DU3. I was trying to check to see if the problem with only your name, the sender's name, showing up in the current Sent folder affected the archived one, but it doesn't seem to be accessible at all.