Please keep Classic Mail the way it was!!! There is absolutely NOTHING to change.
Classic Mail has already worked for Many Many years and there was absolutely NO Need to change the layout for classic mail. Based off how many other Yahoo users have commented/posted, you should have Never changed the layout of Basic/Classic Mail.
We all as Yahoo users should have the option to choose if we want the new layout or the Old layout. No one should ever be forced to become accustomed to a layout that they not only hate, but aren't comfortable with either. Please revert back to the Old layout and please try not to be like hotmail/outlook because as soon as hotmail's layout changed to a new layout, not only was I extremely upset esp. when I didn't have the option to choose the old layout--I literally stopped using that server. There are def. other email servers out there that can be used without the company itself changing anything. At least with gmail, you can still go back to the old format. I honestly don't know if outlook has more or less users now because of the change in their format a couple years back.