mac mail crashing on launch

Question

MacBook Pro (13-inch, Mid 2012)Yosemite OS 10.10.4Mac mail all of a sudden started crashing on opening - now happens every time and I get the following error page:It tells me that "mail quit unexpedtedly" then shows all of this:-----------------Process:               Mail [773]Path:                  /Applications/Mail.app/Contents/MacOS/MailIdentifier:            com.apple.mailVersion:               8.2 (2102)Build Info:            Mail-2102000000000000~1Code Type:             X86-64 (Native)Parent Process:        ??? [1]Responsible:           Mail [773]User ID:               501Date/Time:             2015-07-06 16:12:07.073 -0700OS Version:            Mac OS X 10.10.4 (14E46)Report Version:        11Anonymous UUID:        15481813-2A8E-747B-9D43-BFFBDBFC5FDFTime Awake Since Boot: 1700 secondsCrashed Thread:        33  Dispatch queue: MFEWSAccountRequestResponseQueue :: NSOperation 0x60800049d240 (QOS: UTILITY)Exception Type:        EXC_CRASH (SIGABRT)Exception Codes:       0x0000000000000000, 0x0000000000000000Application Specific Information:*** Terminating app due to uncaught exception &#x27;NSInternalInconsistencyException&#x27;, reason: &#x27;Root Folder Id changed from AAMkAGIzN2YwMjI0LTcyNTQtNDBlYy05MjQzLWMzYzQ3NDhhZWJmYQAuAAAAAADYS7I/rzvKSbkMXbg hNXquAQAPVPc0j3rlRbSKdqApc7GAAAAAAAEBAAA&#x3D; to AAMkAGQwMTYyNzk3LWUwZWMtNDNiOS1iMWI5LWRkODM0MzJkZmU2NwAuAAAAAABaQiJ3i0tsRabqrwm 7hie9AQBJYAwAQLnUSI3aOKh1Q5dwAAAAAAEBAAA&#x3D;: once an account is created, the root folder id shouldn&#x27;t change on the server&#x27;abort() calledterminating with uncaught exception of type NSExceptionApplication Specific Backtrace 1:0   CoreFoundation                      0x00007fff9088903c __exceptionPreprocess + 1721   libobjc.A.dylib                     0x00007fff955c276e objc_exception_throw + 432   CoreFoundation                      0x00007fff90888e1a +[NSException raise:format:arguments:] + 1063   Foundation                          0x00007fff95f928cb -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 1954   Mail                                0x00007fff945faf91 -[MFEWSAccount setRootFolderId:] + 3165   Mail                                0x00007fff94601b6c -[MFEWSConnection _connectAndAuthenticateDiscoveringBestSettings:] + 21736   Mail                                0x00007fff94600dcc -[MFEWSConnection connectDiscoveringBestSettings:] + 877   Mail                                0x00007fff945f7003 -[MFEWSAccount connectAndAuthenticate:] + 4498   Mail                                0x00007fff945f6de2 -[MFEWSAccount authenticatedConnection] + 3989   Mail                                0x00007fff94612969 -[MFEWSGateway connection] + 6410  Mail                                0x00007fff9460ff0a -[MFEWSGateway sendMessage:forRequest:] + 8211  Mail                                0x00007fff9462bbec -[MFEWSRequestOperation executeOperation] + 13112  MailCore                            0x00007fff9057acaa -[MCMonitoredOperation main] + 23413  Mail                                0x00007fff9462bb38 -[MFEWSRequestOperation main] + 9914  Foundation                          0x00007fff95f23a6c -[__NSOperationInternal _start:] + 65315  Foundation                          0x00007fff95f23543 __NSOQSchedule_f + 18416  libdispatch.dylib                   0x00007fff8f27bc13 _dispatch_client_callout + 817  libdispatch.dylib                   0x00007fff8f27f365 _dispatch_queue_drain + 110018  libdispatch.dylib                   0x00007fff8f280ecc _dispatch_queue_invoke + 20219  libdispatch.dylib                   0x00007fff8f27e6b7 _dispatch_root_queue_drain + 46320  libdispatch.dylib                   0x00007fff8f28cfe4 _dispatch_worker_thread3 + 9121  libsystem_pthread.dylib             0x00007fff96f32637 _pthread_wqthread + 72922  libsystem_pthread.dylib             0x00007fff96f3040d start_wqthread + 13Thread 0:: Dispatch queue: com.apple.main-thread0   libsystem_kernel.dylib         0x00007fff925c84de mach_msg_trap + 101   libsystem_kernel.dylib         0x00007fff925c764f mach_msg + 552   com.apple.CoreFoundation       0x00007fff90797eb4 __CFRunLoopServiceMachPort + 2123   com.apple.CoreFoundation       0x00007fff9079737b __CFRunLoopRun + 13714   com.apple.CoreFoundation       0x00007fff90796bd8 CFRunLoopRunSpecific + 2965   com.apple.HIToolbox           0x00007fff964d756f RunCurrentEventLoopInMode + 2356   com.apple.HIToolbox           0x00007fff964d72ea ReceiveNextEventCommon + 4317   com.apple.HIToolbox           0x00007fff964d712b _BlockUntilNextEventMatchingListInModeWithFilter + 718   com.apple.AppKit               0x00007fff8a5868ab _DPSNextEvent + 9789   com.apple.AppKit               0x00007fff8a585e58 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 34610  com.apple.AppKit               0x00007fff8a57baf3 -[NSApplication run] + 59411  com.apple.AppKit               0x00007fff8a4f8244 NSApplicationMain + 183212  libdyld.dylib                 0x00007fff90ac15c9 start + 1Thread 1:: Dispatch queue: com.apple.libdispatch-manager0   libsystem_kernel.dylib         0x00007fff925ce232 kevent64 + 101   libdispatch.dylib             0x00007fff8f27ea6a _dispatch_mgr_thread + 52Thread 2:0   libsystem_kernel.dylib         0x00007fff925cd94a __workq_kernreturn + 101   libsystem_pthread.dylib       0x00007fff96f3040d start_wqthread + 13Thread 3:0   libsystem_kernel.dylib         0x00007fff925cd94a __workq_kernreturn + 101   libsystem_pthread.dylib       0x00007fff96f3040d start_wqthread + 13Thread 4:0   libsystem_kernel.dylib         0x00007fff925cd94a __workq_kernreturn + 101   libsystem_pthread.dylib       0x00007fff96f3040d start_wqthread + 13Thread 5:: -[MFPOPAccount fetchSynchronouslyIsAuto:]  Dispatch queue: NSOperationQueue 0x60800023e080 :: NSOperation 0x600000453440 (QOS: UTILITY)0   libsystem_kernel.dylib         0x00007fff925c84de mach_msg_trap + 101   libsystem_kernel.dylib         0x00007fff925c764f mach_msg + 552   com.apple.CoreFoundation       0x00007fff90797eb4 __CFRunLoopServiceMachPort + 2123   com.apple.CoreFoundation       0x00007fff9079737b __CFRunLoopRun + 13714   com.apple.CoreFoundation       0x00007fff90796bd8 CFRunLoopRunSpecific + 2965   com.apple.Foundation           0x00007fff95f5aa59 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 2786   com.apple.MailCore             0x00007fff9059fd5c -[MCSocket readBytes:maxLength:error:] + 8307   com.apple.MailCore             0x00007fff9050edd9 -[MCConnection _readBytesFromSocketIntoBuffer:amount:requireAllBytes:error:] + 1198   com.apple.MailCore             0x00007fff9050e680 -[MCConnection _fillBuffer:] + 3679   com.apple.MailCore             0x00007fff9050e2e5 -[MCConnection _readLineIntoData:error:] + 19410  com.apple.Mail.framework       0x00007fff9477a58d -[MFPOPConnection _copyResponseLineData] + 9011  com.apple.Mail.framework       0x00007fff9477a452 -[MFPOPConnection _readAndParseSingleLineResponseIsCapabilities:isAuthentication:logFullResponse: ] + 4312  com.apple.Mail.framework       0x00007fff94779f72 -[MFPOPConnection dele:] + 11313  com.apple.Mail.framework       0x00007fff94779e28 __42-[MFPOPConnection deleteMessagesOnServer:]_block_invoke + 36614  com.apple.Foundation           0x00007fff95f3c10c __NSIndexSetEnumerate + 125615  com.apple.Mail.framework       0x00007fff94779c2f -[MFPOPConnection deleteMessagesOnServer:] + 29416  com.apple.Mail.framework       0x00007fff9477eb10 -[MFPOPStore deleteMessages:] + 86517  com.apple.Mail.framework       0x00007fff94780c9f -[MFPOPStore _deleteMessagesMarkedForDeletionUsingManager:] + 45818  com.apple.Mail.framework       0x00007fff9477ee3b -[MFPOPStore fetchSynchronously] + 28219  com.apple.Mail.framework       0x00007fff94774324 -[MFPOPAccount fetchSynchronously] + 20620  com.apple.CoreFoundation       0x00007fff907607bc __invoking___ + 14021  com.apple.CoreFoundation       0x00007fff90760612 -[NSInvocation invoke] + 29022  com.apple.MailCore             0x00007fff9057a80a -[MCMonitoredInvocation invoke] + 24223  com.apple.MailCore             0x00007fff905a4a14 -[MCThrowingInvocationOperation main] + 4824  com.apple.MailCore             0x00007fff9052c76d -[_MCInvocationOperation main] + 42625  com.apple.Foundation           0x00007fff95f23a6c -[__NSOperationInternal _start:] + 65326  com.apple.Foundation           0x00007fff95f23543 __NSOQSchedule_f + 18427  libdispatch.dylib             0x00007fff8f27bc13 _dispatch_client_callout + 828  libdispatch.dylib             0x00007fff8f27f365 _dispatch_queue_drain + 110029  libdispatch.dylib             0x00007fff8f280ecc _dispatch_queue_invoke + 20230  libdispatch.dylib             0x00007fff8f27e6b7 _dispatch_root_queue_drain + 46331  libdispatch.dylib             0x00007fff8f28cfe4 _dispatch_worker_thread3 + 9132  libsystem_pthread.dylib       0x00007fff96f32637 _pthread_wqthread + 72933  libsystem_pthread.dylib       0x00007fff96f3040d start_wqthread + 13Thread 6:: -[MFLocationManager _determineCurrentLocation]  Dispatch queue: NSOperationQueue 0x60800044f480 :: NSOperation 0x60800044c900 (QOS: USER_INITIATED)0   libsystem_kernel.dylib         0x00007fff925c851a semaphore_wait_trap + 101   libdispatch.dylib             0x00007fff8f282c55 _dispatch_semaphore_wait_slow + 2132   com.apple.CFNetwork           0x00007fff88ebcbb8 -[NSHost blockingResolveUntil:] + 1573   com.apple.CFNetwork           0x00007fff88ebcb06 -[NSHost names] + 274   com.apple.MailCore             0x00007fff9057dc8f +[MCNetworkController filteredDomainNamesFromHost:] + 545   com.apple.Mail.framework       0x00007fff946e04e6 -[MFLocationManager _determineCurrentLocation] + 1116   com.apple.CoreFoundation       0x00007fff907607bc __invoking___ + 1407   com.apple.CoreFoundation       0x00007fff90760612 -[NSInvocation invoke] + 2908   com.apple.MailCore             0x00007fff905a4a14 -[MCThrowingInvocationOperation main] + 489   com.apple.MailCore             0x00007fff9052c76d -[_MCInvocationOperation main] + 42610  com.apple.Foundation           0x00007fff95f23a6c -[__NSOperationInternal _start:] + 65311  com.apple.Foundation           0x00007fff95f23543 __NSOQSchedule_f + 18412  libdispatch.dylib             0x00007fff8f27bc13 _dispatch_client_callout + 813  libdispatch.dylib             0x00007fff8f27f365 _dispatch_queue_drain + 110014  libdispatch.dylib             0x00007fff8f280ecc _dispatch_queue_invoke + 20215  libdispatch.dylib             0x00007fff8f27e6b7 _dispatch_root_queue_drain + 46316  libdispatch.dylib             0x00007fff8f28cfe4 _dispatch_worker_thread3 + 9117  libsystem_pthread.dylib       0x00007fff96f32637 _pthread_wqthread + 72918  libsystem_pthread.dylib       0x00007fff96f3040d start_wqthread + 13Thread 7:0   libsystem_kernel.dylib         0x00007fff925cd94a __workq_kernreturn + 101   libsystem_pthread.dylib       0x00007fff96f3040d start_wqthread + 13Thread 8:: -[MailApp _performBackgroundDelayedInitialization]  Dispatch queue: NSOperationQueue 0x60800023e080 :: NSOperation 0x60800084fc90 (QOS: UTILITY)0   libsystem_kernel.dylib         0x00007fff925c8532 semaphore_timedwait_trap + 101   libdispatch.dylib             0x00007fff8f282c0f _dispatch_semaphore_wait_slow + 1432   com.apple.framework.internetaccounts 0x00007fff89032c0b -[IADNSService beginQuerySync] + 11983   com.apple.framework.internetaccounts 0x00007fff89007090 +[IAAccount aListPluginIDForSettings:] + 17424   com.apple.framework.internetaccounts 0x00007fff89006059 +[IAAccount _pluginForSettings:] + 765   com.apple.framework.internetaccounts 0x00007fff890065ab +[IAAccount brandNameForAccountSettings:] + 246   com.apple.Mail.framework       0x00007fff945b6568 -[MFAccount brandName] + 1817   com.apple.mail                 0x0000000100c5aa6b 0x100bfb000 + 3917878   com.apple.CoreFoundation       0x00007fff907607bc __invoking___ + 1409   com.apple.CoreFoundation       0x00007fff90760612 -[NSInvocation invoke] + 29010  com.apple.MailCore             0x00007fff905a4a14 -[MCThrowingInvocationOperation main] + 4811  com.apple.MailCore             0x00007fff9052c76d -[_MCInvocationOperation main] + 42612  com.apple.Foundation           0x00007fff95f23a6c -[__NSOperationInternal _start:] + 65313  com.apple.Foundation           0x00007fff95f23543 __NSOQSchedule_f + 18414  libdispatch.dylib             0x00007fff8f27bc13 _dispatch_client_callout + 815  libdispatch.dylib             0x00007fff8f27f365 _dispatch_queue_drain + 110016  libdispatch.dylib             0x00007fff8f280ecc _dispatch_queue_invoke + 20217  libdispatch.dylib             0x00007fff8f27e6b7 _dispatch_root_queue_drain + 46318  libdispatch.dylib             0x00007fff8f28cfe4 _dispatch_worker_thread3 + 9119  libsystem_pthread.dylib       0x00007fff96f32637 _pthread_wqthread + 72920  libsystem_pthread.dylib       0x00007fff96f3040d start_wqthread + 13Thread 9:: -[MFEWSStore openSynchronously]  Dispatch queue: NSOperationQueue 0x60800045fd40 :: NSOperation 0x600000a4ff30 (QOS: UTILITY)0   libsystem_kernel.dylib         0x00007fff925cd136 __psynch_cvwait + 101   com.apple.Foundation           0x00007fff95fafc9e -[__NSOperationInternal _waitUntilFinished:] + 1312   com.apple.Mail.framework       0x00007fff946135a5 -[MFEWSGateway syncFolderItemsFromFolderIdString:syncState:forStore:] + 7583   com.apple.Mail.framework       0x00007fff94631e41 -[MFEWSStore _fetchChangesFromServer] + 4304   com.apple.Mail.framework       0x00007fff9462dec6 -[MFEWSStore openSynchronouslyUpdatingMetadata:] + 1125   com.apple.CoreFoundation       0x00007fff907607bc __invoking___ + 1406   com.apple.CoreFoundation       0x00007fff90760612 -[NSInvocation invoke] + 2907   com.apple.MailCore             0x00007fff9057a80a -[MCMonitoredInvocation invoke] + 2428   com.apple.MailCore             0x00007fff905a4a14 -[MCThrowingInvocationOperation main] + 489   com.apple.MailCore             0x00007fff9052c76d -[_MCInvocationOperation main] + 42610  com.apple.Foundation           0x00007fff95f23a6c -[__NSOperationInternal _start:] + 65311  com.apple.Foundation           0x00007fff95f23543 __NSOQSchedule_f + 18412  libdispatch.dylib             0x00007fff8f27bc13 _dispatch_client_callout + 813  libdispatch.dylib             0x00007fff8f27f365 _dispatch_queue_drain + 110014  libdispatch.dylib             0x00007fff8f280ecc _dispatch_queue_invoke + 20215  libdispatch.dylib             0x00007fff8f27e6b7 _dispatch_root_queue_drain + 46316  libdispatch.dylib             0x00007fff8f28cfe4 _dispatch_worker_thread3 + 9117  libsystem_pthread.dylib       0x00007fff96f32637 _pthread_wqthread + 72918  libsystem_pthread.dylib       0x00007fff96f3040d start_wqthread + 13Thread 10:: -[DeliveryQueue _deliverQueuedMessages:]  Dispatch queue: NSOperati

Linc Davis · Accepted Answer

Back up all data.Open the Internet Accounts pane in System Preferences and make a note of the settings for the Exchange account. There may be separate entries for mail and other services, such as contacts. Then delete the entries. Confirm that you want to delete the data. It will still be on the server.Recreate the account with the same settings. Test.