Adjust the width of the folders section of email
My inbox just changed today along with the location of the search box. I want to be able to make the width of the folders section smaller but I can not do that anymore.
Drag the Preview panel as far left as it will go and leave it there while you then pull or push the Folders panel to the size you want. Then re-size the Preview to be as you want it.
Same here with the latest update. Cannot see all that wasted space in folder pane.