Using classic Outlook for Windows in business environments
This is the single thing that has helped me! I was frustrated why I was unable to toggle like you and then realized what needs to happen first is to go to Windows general settings (not outlook), Text size and move to 100% or 125% from the recommended and default 150% which does not allow this. Hope this helps someone else and saves time!
PS.: the only thing that now annoys me incredibly, is the 2 cm worth of empty space as a "no column column" next to the Receive date!
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