macOS High Sierra: How to Disable Split View in Mail

1 minute read
| Quick Tip

For those of you who use Mail in full-screen mode, you may have noticed that High Sierra now defaults to a split-screen view when you’re composing a message or when you’ve double-clicked on an email to open it in its own window.

macOS High Sierra Mail in full screen Split Screen View

If you’re not a fan of this, it’s really easy to disable. Get started by choosing “Preferences” from the Mail menu at the top of your screen.

macOS High Sierra Mail Menu selecting Preferences

Then click on the “General” tab.

macOS High Sierra Preferences General Tab showing option to disable split view in full screen mode

As I’ve pointed out above, “Prefer opening messages in split view when in full screen” is the choice we’re looking for, so uncheck that box. When you do so, Mail’s full-screen mode will revert to its previous behavior, which looks like this:

macOS High Sierra Mail full screen mode without split screen mode for messages

I’m torn here. On the one hand, my 13″ laptop screen seems pretty cramped with that split view on, but I do like the idea, at least. How about you all? Are you digging this? Or do you even end up using full-screen mode at all, ever? I admit that I hit the green “stoplight” button on my windows by mistake far more often than I do it on purpose, so maybe I’m not the best judge of how full-screen applications should behave!

One Comment Add a comment

  1. CudaBoy

    What a mess. No thanks. Apple seriously lost the OS UI Wars since Snow Leopard.
    Nope, I’ll leave my Sierra Mac alone – and use the one with Snow Leopard that runs all the apps from Adobe and Avid – correctly. Plus, I can delete mail from the sever within Mail, something in Apple’s infinite wisdom subsequent Mail versions don’t have.




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