Click on the "Junk email" or "Deleted Items" folder. Then look at the top
of the screen, above the list of emails. You'll see a red "X". Highlight
the line (the email message) you want to delete, click the red "X". This
sends the message to your "Deleted Items" folder from the "Junk" folder.
This deletes the message entirely if it's in the "Deleted" folder already.