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email crash, High Sierra, NSArrayM ObjectAtIndexed Subscript

I have already rebuilt my mailbox, deleted plists, and deleted envelope index files to no avail.


Crash happens at any time - when sending an email, when deleting emails, and today when just writing an email.


Any suggestions are appreciated. Thank you.

MacBook Pro 13", macOS 10.12

Posted on Apr 9, 2020 4:05 PM

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Question marked as Apple recommended

Safe Boot from the HD, (holding Shift key down at startup), does the problem occur in Safe Mode?


Safe mode attempts to repair Disks & clears lots of caches, so if Safe Mode works try again in regular boot.


What are the paths for Trash, Drafts, Sent, etc...

Posted on Apr 9, 2020 6:08 PM

Similar questions

16 replies

Apr 10, 2020 11:36 AM in response to serraway

Thanks for your response. I tried Safe Mode and also checked my paths on Mailbox behaviors. But it just happened again. This time, I was merely writing an email when it crashed. Here's part of the crash report. Any thoughts?


Application Specific Information:

*** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayM objectAtIndexedSubscript:]: index 9223372036854775807 beyond bounds [0 .. 2]'

terminating with uncaught exception of type NSException

abort() called


Application Specific Backtrace 1:

0 CoreFoundation 0x00007fff31767a4b __exceptionPreprocess + 171

1 libobjc.A.dylib 0x00007fff589f4c76 objc_exception_throw + 48

2 CoreFoundation 0x00007fff317a8cd4 _CFThrowFormattedException + 202

3 CoreFoundation 0x00007fff31788ce0 -[__NSArrayM removeObjectsInRange:] + 0

4 IMAP 0x00007fff4b31183a -[IMAPMailboxSyncState messageNumberForUID:orRange:] + 175

5 IMAP 0x00007fff4b320972 __93-[IMAPNetworkTaskHandler connection:receivedUnhandledUntaggedResponse:forMailbox:forCommand:]_block_invoke + 45

6 Foundation 0x00007fff338226fc __NSIndexSetEnumerate + 633

7 IMAP 0x00007fff4b320850 -[IMAPNetworkTaskHandler connection:receivedUnhandledUntaggedResponse:forMailbox:forCommand:] + 1189

8 IMAP 0x00007fff4b30173e -[IMAPConnection _recordUntaggedResponse:forCommand:exists:receivedExists:fromIDLE:] + 4212

9 IMAP 0x00007fff4b2fbca3 -[IMAPConnection _copyNextTaggedOrContinuationResponseForCommand:exists:receivedExists:] + 1038

10 IMAP 0x00007fff4b30031a -[IMAPConnection _responseFromSendingCommand:receivedExists:] + 1386

11 IMAP 0x00007fff4b2fb5f1 -[IMAPConnection executeClientCommand:] + 60

12 IMAP 0x00007fff4b2fb45b -[IMAPConnection prepareAndExecuteCommand:] + 220

13 IMAP 0x00007fff4b32da94 -[IMAPServerInterface executeClientCommand:] + 1195

14 IMAP 0x00007fff4b32ba38 -[IMAPServerInterface expunge] + 56

15 IMAP 0x00007fff4b33b235 __45-[IMAPTaskManager expungeMailbox:ifSelected:]_block_invoke + 44

16 IMAP 0x00007fff4b33874b __89-[IMAPTaskManager _doCommandBlockForMailbox:block:async:ifSelected:priority:description:]_block_invoke_2 + 128

0x00007fff337f584c __NSOQSchedule_f + 342

25 libdispatch.dylib 0x00007fff595d4db8 _dispatch_client_callout + 8

26 libdispatch.dylib 0x00007fff595e7e81 _dispatch_continuation_pop + 472

27 libdispatch.dylib 0x00007fff595df733 _dispatch_async_redirect_invoke + 703

28 libdispatch.dylib 0x00007fff595d69a9 _dispatch_root_queue_drain + 515

29 libdispatch.dylib 0x00007fff595d6755 _dispatch_worker_thread3 + 101



Thread 0:: Dispatch queue: com.apple.main-thread

0 libsystem_kernel.dylib 0x00007fff5975520a mach_msg_trap + 10

1 libsystem_kernel.dylib 0x00007fff59754724 mach_msg + 60

2 com.apple.CoreFoundation 0x00007fff316e22c5 __CFRunLoopServiceMachPort + 341

3 com.apple.CoreFoundation 0x00007fff316e1617 __CFRunLoopRun + 1783

4 com.apple.CoreFoundation 0x00007fff316e0c93 CFRunLoopRunSpecific + 483

5 com.apple.HIToolbox 0x00007fff309cbd96 RunCurrentEventLoopInMode + 286

6 com.apple.HIToolbox 0x00007fff309cbb06 ReceiveNextEventCommon + 613

7 com.apple.HIToolbox 0x00007fff309cb884 _BlockUntilNextEventMatchingListInModeWithFilter + 64

8 com.apple.AppKit 0x00007fff2ec7ba73 _DPSNextEvent + 2085

9 com.apple.AppKit 0x00007fff2f411e34 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 3044

10 com.apple.AppKit 0x00007fff2ec70885 -[NSApplication run] + 764

11 com.apple.AppKit 0x00007fff2ec3fa72 NSApplicationMain + 804

12 libdyld.dylib 0x00007fff5960e015 start + 1


Apr 10, 2020 6:11 PM in response to BDAqua

I wondered about the Objects too.

Okay - I will use my icloud email via browser for the next two days and let you know.

Changed my Drafts to 'On my mac'.

I also have a gmail account that I view through my inbox. Do you think I should delete the Gmail as a sub-folder just in case it is a problem? I only use it for my Apple ID.


Thanks so much!

Apr 22, 2020 10:59 PM in response to BDAqua

I've been waiting to write until a good test period of time has passed. No crashes in about 7 days. What I did was, first, a Force Quit of email. Re-opened and Disabled each of the two email accounts one at a time. Waited 5 or 10 minutes, then "Enabled". Hope I won't be eating my words, but so far, so good. Can you think of any logic as to why this would have helped? Could it have cleared a transaction that was stuck in the queue?


Thanks BDA

Apr 27, 2020 7:18 PM in response to BDAqua

Still getting the crash. This time I'm getting a message "Mail quit unexpectedly due to Sentry plugin". Not sure what this means, but here's the first part of the report:


Process: Mail \[647]

Path: /Applications/Mail.app/Contents/MacOS/Mail

Identifier: com.apple.mail

Version: 11.5 (3445.9.5)

Build Info: Mail-3445009005000000\~1

Code Type: X86-64 (Native)

Parent Process: ??? \[1]

Responsible: Mail \[647]

User ID: 501


PlugIn Path: /Library/Mail/\*/Sentry.framework/Versions/A/Sentry

PlugIn Identifier: io.sentry.Sentry

PlugIn Version: 4.5.0 (4.5.0)


Apr 29, 2020 6:19 PM in response to TonyCr46

Just got a new crash, but for a different reason (not the Sentry plugin). Here's the initial crash log:


Process: Mail [63457]

Path: /Applications/Mail.app/Contents/MacOS/Mail

Identifier: Mail

Version: 11.5 (3445.9.5)

Code Type: X86-64 (Native)

Parent Process: ??? [1]

Responsible: Mail [63457]

User ID: 501


Date/Time: 2020-04-30 00:20:04.843 +0700

OS Version: Mac OS X 10.13.6 (17G12034)

Report Version: 12

Anonymous UUID: 48776F8F-9D74-BC14-D1BB-0688AFA39CC6



Time Awake Since Boot: 300000 seconds


System Integrity Protection: enabled


Crashed Thread: 10 Dispatch queue: IMAPNetworkTaskHandler queue (QOS: BACKGROUND)


Exception Type: EXC_CRASH (SIGABRT)

Exception Codes: 0x0000000000000000, 0x0000000000000000

Exception Note: EXC_CORPSE_NOTIFY


Any thoughts?

email crash, High Sierra, NSArrayM ObjectAtIndexed Subscript

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