Why do I Have to Click Twice to Open Catalina Mail

Since the upgrade to Catalina, I have to click twice on the Mail icon to open it.

Posted on Oct 10, 2019 10:40 PM

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Posted on Jan 27, 2020 7:53 AM

Here's the fix. It's a peculiarity of Mission Control. Open Mission Control in System Preferences and check the box that says "When switching to an application, switch to a space with open windows for the application." (This choice must have been the default previously, but not in Catalina.)

176 replies

Oct 15, 2019 3:00 PM in response to magnamentis

magnamentis wrote:

Now we can calculate the probability that one person has 5 machines that work in one way and another person has 5 machines that work in another way with the same setup ;)

Actually we have 2 people with at least 6 machines that work normally so your probability calculation will be off. :)

I assume that the person who claims he does not have the problem does either have one type of machine that indeed does behave differently or, which often happens, does not talk about the same.

There's actually two people in the thread who claim it works as it should.

I've just found an old thread about a similar issue many years back and every poster understood something else. The question was the same like it is asked here and only those who have the issue will immediately understand what is meant. For someone without the issue it will perhaps be non-comprehensive at first glance.

Then you should post the link.

However that is, right now i have to click twice on the dock icon to open mail the way it was working with one click before.

Perhaps your Mail icon is thicker and requires more pressure. 😎

Oct 15, 2019 10:59 PM in response to dialabrain

Not yet Dialabrain, it only arrived while I slept, but I tested Guest account which was OK, then logged back into my account and again NO problem, so it is some sort of minor random temporary glitch of no real importance imo.


Without hi-jacking the thread I have more annoying Mail problem than this minor thing, (as an Outlook.com user.)

Oct 16, 2019 2:27 AM in response to Bilbo 21

Well I have not tried this as I am away from my mac and never use the Dock, but I will test.


Before that I just would like to clarify something: the issue is not that Mail does not open with a single click on the Dock icon. It does. The issue is that Mail’s Message Viewer window does not open. Just to set the record straight. Macs are not like Windows. An application can be open (as evidenced by its menus appearing in the menu bar, by the dot under the Dock icon, by it showing in the application switcher when you press command-tab...) and not have any windows open.

Oct 16, 2019 3:11 AM in response to BertingAP

BertingAP wrote:

Since the upgrade to Catalina, I have to click twice on the Mail icon to open it.

Just to clarify Luis's post. DO NOT try and quit Mail by clicking the red close button. all that does is close the window. So the next time you open Mail it will open in the same state, with a closed window. Use "Command + Q" or "Quit Mail" from the Mail menu.

Oct 16, 2019 11:51 PM in response to LD150

Hardly a storm in a teacup, unless you mean about some trying to defend or belittle the change.


Some found a problem, now we know what it is, whether they ever put it back to the same as all of the other Apps ...well, we'll see (but nothing else works this way so no idea where the brain f art came from.


Me? I close windows for desktop space, and quit Apps to get my processing overhead back. But YMMV.


Anyway ...I think that's all that need to be said, we know what it is and don't need any flag waving.

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Why do I Have to Click Twice to Open Catalina Mail

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