Hi, since Eudora doesn't work anymore, I'm trying Thunderbir, so I transferred the emails with "ImportExport Tool". The emails that are transferred from Eudora to Thunderbird are mixed up with the ones I deleted.I'll give you an example: if I get some propaganda email, I delete them as well as the messages that come from the forums that say: there's a response to your post.In fact, the messages transferred are too many, 2500. And only those messages that I had deleted do not have the subject, but only the title. So I have a lot of confusion of messages.In "ImportExport Tool" I used "Import individual mbox files". What does "Import individual mbox files with sbd structure" mean? I hope I have chosen the right option for importing emails. Maybe I need to configure "ImportExport Tool"? Thank you.