I just read the thread "Thunderbird does not delete save drafts after email is sent", cause i experience this since years and do not understand the rationale, why auto-saved drafts do not disappear from the drafts folder, when the mail is sent. Then it should be in the folder Sent and nowhere else anymore. Anyway. Another thing i see and that more than confused me, when i got aware of it the first times, is, that for the mails in the drafts folder, the shown correspondent does not match the mail. When i click the mail in question in the list, i see a mail matching the subject and in the reading pane showing the correct addressee, but in the list it seems thunderbird shows a random addressee from one of the mails sent recently. I have several Linux installations with several users and the issue appears on all of them. Thank you for fixing or deeper insight, what the use of this might be.