Mail program crashes

Hey, Paul.

I see that you're receiving an error message whenever when the Mail application unexpectedly shuts down on your Mac. You get an exception message that states "Got more VANISHED UIDs than existing messages", and I'm glad to help.

Use safe mode to isolate issues with your Mac -- Restart your Mac in safe mode and test how the Mail app responds. If everything works as expected while in safe mode, reboot normally and test again in your own user account.

Rebuild mailboxes in Mail on Mac -- If the issue persists, rebuild the inbox of the email that's being affected.

Add or remove email accounts in Mail on Mac -- If rebuilding the mailbox didn't resolve the issue, remove the email account and add it back again. If the email account isn't an IMAP account, be sure to move or copy your emails before you remove the account. The information on how to do this is under "Remove an email account".

Let me know how that goes, and take care!

Thanks for trying those steps and getting back to us with the results, Paul. It's appreciated. Since there isn't a way to reinstall just the Mail application, I'd like for you to reinstall the operating system of your Mac.

How to use Time Machine to back up or restore your Mac -- Before the moving to the next step, be sure your personal information is safe by backing up your Mac. 

How to reinstall macOS from macOS Recovery -- Reinstalling macOS version will put a fresh copy of the operating system on your Mac. See how the Mail application behaves afterwards.

If you're still experiencing this problem, have you noticed whether this is happening with just one email account or all of them?

Get back to us again when you have a chance.

Cheers!

Hi,

I'm having a similar problem with my mail with the exact same message:

Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Got more VANISHED UIDs than existing messages'

terminating with uncaught exception of type NSException

I run a MacMini and a MacBook Pro. It's happening to the e-mail accounts on both of them. How could the both computers get the same corruption?

I'm curious if PaulM22 fixed the problem by reinstalling macOS.

Thanks for any insights.

For what it's worth. Reinstalling didn't help. It seemed to work for a while but started again. If this helps anyone figure out the problem, I have a MacMini and a MacBook Pro. I'm getting the same problem on both of them.

On my MacBook Air running Catalina 10.15.1

Modell-Identifizierung: MacBookAir6,2

Prozessortyp: Dual-Core Intel Core i7

Prozessorgeschwindigkeit: 1,7 GHz

Anzahl der Prozessoren: 1

Gesamtanzahl der Kerne: 2

L2-Cache (pro Kern): 256 KB

L3-Cache: 4 MB

Hyper-Threading Technologie: Aktiviert

Speicher: 8 GB

Boot-ROM-Version: 118.0.0.0.0

SMC-Version (System): 2.13f15

Seriennummer (System): C02LF7STF6T6

Hardware-UUID: E68E798B-F9FB-5920-B1AF-9F959E312A3D

I am also experiencing this kind of Mail crashes. The error code embedded in the report is identical to the examples cited.

BW.

It would be more correct to say that I haven't been bothered by that particular issue. I've had to deal with others. A problem with my wifi forced me to downgrade from 15.1 back to 15.0. Whether Apple actually found the problem and fixed it, or one of the causes of the problem changed to allow for Mail to work properly again, Apple will have to say.

PaulM22 wrote:

Ditto here! Since installing Catalina I have no longer encountered the previous errors.

Are you saying the issue has been solved?

Knock on wood, since transitioning to Catalina, that particular problem seems to have gone away for me.

I have the same problem and this is on a brand new 15" MacBook Pro. It is also outfitted with Catalina. I really hope there's a better solution than reloading the OS. Anyone have better updates?