I can’t seem to find any way to delete or rename folders in 5.6 or 5.7.x. Is this supported?
Sorry, this is not supported yet. For now you’ll have to use another client to create, delete, or rename folders and then refresh the folder list in K-9 Mail.
I’d like to delete local folders of k9mail. Of course this cannot be done by annother mail client.
Please enable k9mail at least to manage its own local folders.