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Change the default mail application on Mac OS X

1Change default mail app on Mac OS X - Step 1

Mac OS X ships with Mac Mail built-in, and automatically set as the default email application on your iMac or MacBook / Air / Pro. As soon as you install another program capable of handling email, it can be set as the new default. Unlike changing the default web browser on a Mac, the default mail handler is not controlled from the centralized system preferences app (weird quirk!)

2Change default mail app on Mac OS X - Step 2

Launch Mail: then, click on the Mail menu and select Preferences (or, like most Mac apps, hit the Command+Comma keyboard shortcut to go even faster!)

3Change default mail app on Mac OS X - Step 3

Make sure that the General settings tab is selected at the top.

4Change default mail app on Mac OS X - Step 4

Now click on the Default email reader dropdown menu: Mac OS X will list all the recognized email apps currently installed on your computer. Pick the one you want to use as the default. If it's not in the list, click on the "Select..." option at the bottom to manually pick another app from the Applications folder.

5Change default mail app on Mac OS X - Step 5

Your setting is automatically saved when you close that Preferences window. To test that the default email program is the one you wanted, open any web page in Safari and hit Command+Shift+i to email a link to that page. Safari will open new, blank email with a link using your new default mail application!