No column names in Apple Mail...
I'm using Apple Mail 13.4 on macOS Catalina 10.15.7, with "Use Column Layout" enabled (i.e. three panes, with the preview in the bottom right).
The columns in the email list pane (top right) for some reason do not have names (like "Subject", "To", "From", "Received", etc). I used to have these column names in macOS High Sierra.
I've searched in the usual places ("Preferences > Viewing", and "View") but I don't see the setting for having column names. Does anyone know where that setting is?
MacBook Pro