I was using Thnderbird when it started refusing to display any graphics. After three days of struggle, I checked the emails in one of my three accounts using Outlook (ugh) only to find that Outlook defaulted to clearing the emails from the servers when downloading them. So the history is not available from the servers. I did manage to bring the emails back into Thunderbird as local files so they aren't totally lost.
Now my question. Is there some way to make those emails so I can at least see them in ZD?