We desperately need the option to have mail marked as having been read when it's deleted or not having it marked as read. This has been suggested before but no option has ever showed up. If I delete hundreds of emails, and one was deleted by accident without having been read, it's so much easier to find it in my deleted folder if it's still marked as not read. Even if I accidentally delete something and then undelete it's marked as read even though I never opened it. We need the option of working one way or the other.