I just changed from Windows to OS X Mavericks with Apple Mail App 7.3. The first thing I'm wondering about is that I cannot disable the automation to mark an email as read by default when I just clicked on it. Is there any way to do so?

I found TruePreview. But the tool does not support Mail 7.3 any more. Another solution would be to use a different mail client like Thunderbird. But there I miss the integration of the address book and the synchronisation with my iPhone and iPad.

  • As long you keep the preview/quick-view window open there is no way to keep the message as not read, since you did read it. You can use set- Flags for the ones you want to get back to.
    – Ruskes
    May 31, 2014 at 14:42
  • Really no way? I tried TruePreview, but it is not working any more with Mail 7.3. Are there any other Plug-ins or tools available?
    – Morpheus78
    May 31, 2014 at 15:44
  • 2
    discussions.apple.com/thread/5984282?tstart=0 Just click "I have this question too".
    – user98084
    Oct 28, 2014 at 16:34

2 Answers 2


I've been using Mail Act-On. It's overkill (does a lot more than just keep messages unread) and kind of pricey at $30 (with free trial), but since it's a paid app, they keep it up to date. Even when TruePreview was being maintained, it'd sometimes be weeks or months before it was updated to work with the latest version of OS X.

  • I'll wait for OS Yosemite and than we'll see if something in AppleMail has changed. Afterwards I will think about an alternative again...
    – Morpheus78
    Sep 29, 2014 at 11:13
  • 3
    Unfortunately nothing changed in the new Mail App. :-(
    – Morpheus78
    Oct 28, 2014 at 21:59

Use the standard keyboard shortcut, cmd+shift+u to toggle between “read” and “unread”. You can also go to System PreferencesKeyboard to customise your own keyboard shortcut.

  • 1
    That's the way I'm currently using. But it's not very convinient. I even changed the shortcut to make it a bit faster to change between "read" and "unread". Is there any way to inform apple for some improvements?
    – Morpheus78
    Jun 29, 2014 at 13:24
  • 1
    @Morpheus78 The best you can do is to go to the feedback page using Mail > Provide Mail Feedback… from the menu. Jan 27, 2015 at 8:14

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