Mail app keeps crashing after Yosemite update

I am having the exact same problem, updated to Yosemite last night, opened Mail this morning and it crashes every time it opens.

Me too. Monday morning Mail, Safari, App Store, Pages... stops working. The app icon bounces twice and then stop. I did formated and reinstalled Yosemite yesterday, and this afternoon again the same problem.

My mail worked fine until this morning. Now it crashed EVERY time I open it. My opinion of Apple is diminished -- looks like they put all their love into the phone and forgot the desktop.

Similar problems here. Come back and my IMac won't wake from sleep. Kernel panics... four times so far. Apple tech support doesn't know how to fix it. My iMac is almost brand new. Never had this problem with Mavericks... there is some fundamental flaw in the OS.

All sorted,

Disabled all of my email accounts, then enabled one at a time

Narrowed it down to one account that when enabled would cause the crash

Deleted the account and then re-set it back up again.

Everything running fine again.

I did the same as aaryn234 but now my crashing is back after 1 hour of no crashes. And now Mail won’t open again 😠

Thanks for this tip. My apple mail was stuck on "Preparing to import" after my upgrade to Yosemite for 4 days. I just went into Internet Accounts and disabled them all just as you did....closed apple mail....reopened...and voila! It opened. Re-enabling my accounts one by one as we speak. Thanks!

ok, so my original thing worked, but now is back to crashing again.

weirdly every time I delete my exchange account then Mail will behave itself again.

so now I have to track down with Exchange what the problem is or maybe what email?

It is also my exchange account that crashes Mail when enabled.

Maybe there is a software error when dealing with Exchange accounts with Mail?

I have the same problem too, and it appears that things are falling into a negative loop:

Yosemite crashes ==> Yosemite tries to "repair itself" AND Yosemite tries to report the crash.

Anyway it causes you unable to use your macbook. To me, Yosemite is just like a zombie because it keeps dying and it can not be killed. It seems that Mac OS X is on its way to be something like Windows Vista.

Is there anyway to make it stable? I don't really need so many "fancy" features (or bugs, to be more precise)

My Exchange account is working but when I remove the Gmail account the Mail program is OK. It's the addition of the Gmail account that causes my Apply Mail to crash ALL THE TIME. It's hard to believe Apple would release an upgrade like Yosemite without the property Beta testing and more hard to believe that with all of the posts about Apple Mail THAT THEY HAVE NOT YET PROVIDED A FIX!! SHAME ON YOU APPLE FOLKS.

Did a clean install of Yosemite after issues with constant crashes on a mid-2010 MacBook Pro. Then tried Migration Assistant which hung up forever (12 hours) at 7 minutes to go. Forced quit and rebooted. I tried this after the initial reinstall transferring files from the worthless non-function software rouse called "Time Machine" which should be renamed "Waste of Time Machine". So I have spent endless hours on various Apple support forums on Time Machine, Migration Assistant, and Apple Mail forums, with dozens of users with similar or the very same issues. The most striking thing in all these forums is that there are no "this solved my problem" posts, and any response from any Apple support person or employee is 100% absent. I have used nothing but Macs since 1987. In the last few weeks I've spent more time trying to solve Mac computer OS issues than using my Macs. The Tim Cook era is starting to mirror the Ken Scully era when Apple was the company you loved to hate. Lovely hardware designs -- crappy worthless software. No mail, no 8000 image iPhoto library (despite two levels of backups) - no way to recovery that I can discover. Spaceship buildings, silly watches (which I predict will go the way of the of the Newton), daft Siri, and complete lack of focus on software that actually functions with the pretty hardware. I love my iPad and iPhone, but I see Windows and Android in my future, after 27 years of blind, and in retrospect, misplaced Apple loyalty. The Apple Titanic has an iceberg dead ahead of it that it is too blind to see.

Hi Herbguy,

I hate to agree with you, but I must. This is just awful that so many people I know (live and work with, not to mention all online with issues) blindly decided it was great to upgrade to Yosemite. Apple could not have sufficiently tested this new upgrade and, with all of the "reports" I keep sending when my Apple Mail crashes (sometimes 10 in an hour!), there is nothing. No fix, no update, etc. I have even been one of the free Troubleshooters for Apple. In the case of three Apple computers on which Mail just crashed repeatedly after Yosemite was installed, simply removing the Gmail account(s) from Apply Mail seems to "fix it"! If this is Apple's way of getting people to give up Gmail, I hope that people rebel first and give up Apple!!!

Same issue for me... anyone else getting an "out of system resources" error message in conjunction with the crashes? I have a brand new maxed out MBP so wouldn't expect all these OS related issues.