Mail toolbar keeps resetting itself
When you right click on the toolbar (or choose View > Customize Toolbar in the main menu) you get the option "Icon Only" which is what I always choose. Since upgrading to High Sierra the preference does not stick. Usually after a day the toolbar resets itself to "Icon and Text". How can I convince Mail that I really want "Icon Only"?
MacBook Pro with Retina display, macOS High Sierra (10.13), 2,9 GHz Core i5, 16 GB RAM