Mail program on iMac crashes.

Mail program on my iMac crashes when opening. I have tried starting computer in safe mode but Mail still crashed immediately. iMac (late 2012) is running El Capitan 10.11.6. Mail is version 9.3.


Problem might be related to a corrupt email, which was on my iPhone and that has subsequently been deleted.

iMac (27-inch, Late 2012), OS X El Capitan (10.11.6)

Posted on Sep 11, 2016 3:20 PM

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2 replies

Sep 13, 2016 1:17 PM in response to Roxie80

Do a backup, preferably 2 on 2 separate drives.


Quit Mail.


Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Go to Library/Containers/com.apple.mail. Move the folder com.apple.mail to your desktop. You must move the entire folder, not just the contents.


Restart, re-launch Mail and test. If the problem is solved, recreate any required Mail settings and import any emails you want to save from the folder on the desktop. You can then put the folder in the Trash. If the problem remains, return the folder to where you got it replacing the one that is there.


If that doesn’t solve it repeat the above using Containers/com.apple.MailServiceAgent.

Information learned from Linc Davis. Thanks to leonie for some information contained in this.

Sep 13, 2016 1:27 PM in response to Eric Root

I moved the folder "com.apple.mail" to desktop and restarted. Didn’t solve the problem. I replaced the folder and restarted.

As per suggestion, I then moved the folder "Containers/com.apple.MailServiceAgent" to desktop and restarted. This didn’t solve the problem. I replaced the folder and restarted.

Both suggestions did not solve the Mail problem.

Help please. What now? Thanks in advance.

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Mail program on iMac crashes.

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