I believe this is a feature: the reason is that you don't forget that you've got mails in your draft folder. I agree that it is a bit strange looking, but it is useful!
-- Drafts folder marked as unread even if mails are read https://launchpad.net/bugs/40719 -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
