Recently I have noticed that Mail.app on Mojave is sending discarded messages to the trash instead of archive. I have set the preference "Move discarded messages into archive", but that doesn't seem to make a difference. The user guide says this setting is for swip guestures, but I was hoping it would apply to the delete key as well.

On the toolbar, I have two separate buttons for Delete and Archive. Both of these buttons work correctly, but I like to discard messages using the delete (backspace) key.

I did figure out that setting Trash Mailbox to None will effectively make all discarded messages go to archive. But this makes it impossible to trash a message. I want the delete key to archive and I want the trash button to trash.

There is a menu item to Archive, but Sys Prefs does not allow assigning a custom shortcut for the delete key with no modifier.

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  • try creating a custom shortcut in System Preference according to, in Mail app, Message menu-> Archive. Also, You can swipe left on a Mac!! pardon because I chuckled. Swipe on the message with two fingers. You should see a archive box if these settings are in place.
    – anki
    Commented Aug 14, 2019 at 18:32
  • Oh do you mean swiping with a trackpad? I forgot about that since I use a trackball. Custom shortcut is a good idea, I will try that.
    – Elliott
    Commented Aug 14, 2019 at 18:58
  • 3
    System Prefs won't let you assign a shortcut to the delete (backspace) key
    – Elliott
    Commented Oct 24, 2019 at 6:46
  • @ankii you're right, the swipe guesture does respect this setting. But I prefer the keyboard.
    – Elliott
    Commented Oct 26, 2019 at 17:28
  • I asked this question 3 months ago. The other one should be a duplicate!
    – Elliott
    Commented Nov 15, 2019 at 4:24


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