We use Google for Business. In my inbox I have a vertical split screen as you would in most mail clients.
However the pane to the far right, which shows the full email, has what can only be described as a blank white section to the right hand side in which nothing is displayed. I.e. the display is incorrectly sized (its not wide enough) because of an unused piece of screen. Not sure if this makes sense, or if anyone has a solve??