Since I changed PCs and reinstalled Thunderbird, I've had a problem that I can't solve. In my orange.fr mailbox (and only in that one), my Drafts and Sent folders are duplicated. The distribution between the folders seems random, or I didn't recognize its logic. Here's their location: DRAFT imap://g.freyburger%40wanadoo.fr@imap.orange.fr/INBOX/DRAFT imap://g.freyburger%40wanadoo.fr@imap.orange.fr/INBOX/Drafts SENT imap://g.freyburger%40wanadoo.fr@imap.orange.fr/INBOX/OUTBOX imap://g.freyburger%40wanadoo.fr@imap.orange.fr/INBOX/Sent When I consult my sent messages on my browser (Brave), it is the one corresponding to imap://.../INBOX/OUTBOX that appears and only it. Orange can't help me, telling me that the problem concerns TB. How do I merge DRAFT and Drafts, and also DRAFT and Drafts without losing my messages. Of course, I don't want to lose any messages... Thank you for your reply, Yours sincerely Geneviève