What's new in Mail in macOS High Sierra

macOS High Sierra isn't really a feature-heavy release from the perspective of most users, but that doesn't mean that Mac users get left out in the cold. Some of the notable updates in High Sierra come in Mail and include more powerful and helpful search, as well as Split View support when writing a message.

Here are the new features coming in Mail in macOS High Sierra.

Mail finds the message you're looking for

Mail in macOS High Sierra is getting a big boost to its search capabilities with Top Hits. Powered by Spotlight, Top Hits puts the email messages most relevant to your search at the top of your list. Top Hits is based on things like the email you've read, which people you reply to, your VIP contacts, and more.

Side by side

If you use Mail in fullscreen on your Mac, macOS High Sierra will have a new option for writing email messages, letting you open the compose window next to Mail in Split View. This can allow you to more easily view a message that you're responding to while you type up that response, or refer to other relevant messages.

Storage optimizations

Apple will also be making some storage optimizations for Mail in macOS High Sierra. The company claims that the app is more efficient than ever in its storage usage, using up to 35% less space than before.


If you want to know more about Mail in macOS High Sierra, be sure to tell us in the comments.

Joseph Keller is the former Editor in Chief of iMore. An Apple user for almost 20 years, he spends his time learning the ins and outs of iOS and macOS, always finding ways of getting the most out of his iPhone, iPad, Apple Watch, and Mac.

  • That's just 2 new things specific to Mail really, the storage optimizations are all around the OS, partly attributed to APFS. Welcome changes, though
  • This split screen view of an Email also opens if you have another app open full-screen and you click on a Mail notification. I love that new feature!
  • But did they finally make it not ugly?
  • Have you seen Windows 10 Mail? You're lucky if you haven't.
  • I want a better Mail platform. I have used the MacBook Pros for 12 years and have never been truly satisfied with it. The size optimization is definitely needed.
  • Apple is such an innovative company, having brought so many awesome products over the years, but why, why, why....can't they redesign Mail.app? It the ugliest app in the Apple stable and hasn't received a true UI update in about a decade. Perhaps they think folks just don't use it anymore so they don't care? Also, it needs to work better with Gmail, and whether Apple likes it or not, Gmail is the most used email service in the world.
  • The other thing Apple needs to allow in Mail.app is customization of the message list font and the folder list font. They're so tiny it's impossible to see them if you're farsighted or have vision problems. They let us customize message fonts, so why not these?
  • Hmm... I wonder if anyone else has seen this particular improvement:
    When using Mail.app with a Gmail account in previous versions, the application would save multiple versions of a draft when composing a new message (a longtime known-issue with Mail.app and Gmail). The problem was so bad that I eventually gave up on Mail.app and switched to Spark. Today I decided to give the updated app a try, and it looks like the "multiple drafts" issue is resolved (YES!!!!). Is anyone else seeing this improved behavior?