How do I get the new UI in Outlook?
To do this, click File > Account Settings > Account Settings > Set as Default. Restart Outlook and click on the Try the New Outlook toggle.
Why does my Outlook interface look different?
Why is Outlook different to other email providers? Outlook versions use the Microsoft Word engine to render HTML emails. Email service providers such as Outlook interpret HTML code in different ways which can cause your email to look different in Outlook than what it looks like in your email marketing platform.