[10.12 Sierra] Probleme mit Mail ( Absturz ) 10.12.3

[Largo303]

aktuell läuft Sierra auf meinem Rechner, seit kurzem stürzt nachdem öffnen immer Mail ab
hier der Log:

Process: Mail [481]
Path: /Applications/Mail.app/Contents/MacOS/Mail
Identifier: com.apple.mail
Version: 10.2 (3259)
Build Info: Mail-3259000000000000~2
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Mail [481]
User ID: 501

Date/Time: 2017-03-22 18:05:11.023 +0100
OS Version: Mac OS X 10.12.3 (16D32)
Report Version: 12
Anonymous UUID: D1B79D68-CCFC-2E55-E66F-D16017D8D78D


Time Awake Since Boot: 350 seconds

System Integrity Protection: enabled

Crashed Thread: 16 Dispatch queue: NSOperationQueue 0x60000084ac50 :: NSOperation 0x600000a5cc20 (QOS: DEFAULT)

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY

Application Specific Information:
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'This method must be called on the main thread'
abort() called
terminating with uncaught exception of type NSException

Application Specific Backtrace 1:
0 CoreFoundation 0x00007fff798d70db __exceptionPreprocess + 171
1 libobjc.A.dylib 0x00007fff8e568a2a objc_exception_throw + 48
2 CoreFoundation 0x00007fff798dbc32 +[NSException raise:format:arguments:] + 98
3 Foundation 0x00007fff7b344d50 -[NSAssertionHandler handleFailureInMethodbject:file:lineNumber:description:] + 195
4 Mail 0x00000001015467fd Mail + 260093
5 Mail 0x00000001015529c0 Mail + 309696
6 CoreFoundation 0x00007fff7998cbfd __NSOrderedSetChunkIterate + 509
7 CoreFoundation 0x00007fff798e0587 __NSOrderedSetGetIndexPassingTest + 1367
8 Mail 0x00000001015317f3 Mail + 174067
9 Mail 0x0000000101531640 Mail + 173632
10 Mail 0x00000001018257e8 Mail + 3270632
11 Mail 0x0000000101825cee Mail + 3271918
12 Mail 0x0000000101540d95 Mail + 236949
13 Mail 0x0000000101721960 Mail + 2206048
14 Mail 0x000000010180a961 Mail + 3160417
15 Mail 0x00000001016c8ddc Mail + 1842652
16 Mail 0x0000000101566c05 Mail + 392197
17 Mail 0x00000001015669bd Mail + 391613
18 Mail 0x0000000101601789 Mail + 1025929
19 Mail 0x0000000101606dc3 Mail + 1048003
20 Foundation 0x00007fff7b2a22d9 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 7
21 Foundation 0x00007fff7b2a1fbc -[NSBlockOperation main] + 101
22 Foundation 0x00007fff7b2a06e4 -[__NSOperationInternal _start:] + 672
23 Foundation 0x00007fff7b29c59b __NSOQSchedule_f + 201
24 libdispatch.dylib 0x00007fff8ee140b8 _dispatch_client_callout + 8
25 libdispatch.dylib 0x00007fff8ee2aae5 _dispatch_queue_serial_drain + 896
26 libdispatch.dylib 0x00007fff8ee1ccd9 _dispatch_queue_invoke + 1046
27 libdispatch.dylib 0x00007fff8ee15e70 _dispatch_root_queue_drain + 476
28 libdispatch.dylib 0x00007fff8ee15c47 _dispatch_worker_thread3 + 99
29 libsystem_pthread.dylib 0x00007fff8f061712 _pthread_wqthread + 1299
30 libsystem_pthread.dylib 0x00007fff8f0611ed start_wqthread + 13

Thread 0:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff8ef7138a mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff8ef707d7 mach_msg + 55
2 com.apple.CoreFoundation 0x00007fff7984ee84 __CFRunLoopServiceMachPort + 212
3 com.apple.CoreFoundation 0x00007fff7984e301 __CFRunLoopRun + 1361
4 com.apple.CoreFoundation 0x00007fff7984db54 CFRunLoopRunSpecific + 420
5 com.apple.HIToolbox 0x00007fff78dd8a5c RunCurrentEventLoopInMode + 240
6 com.apple.HIToolbox 0x00007fff78dd8891 ReceiveNextEventCommon + 432
7 com.apple.HIToolbox 0x00007fff78dd86c6 _BlockUntilNextEventMatchingListInModeWithFilter + 71
8 com.apple.AppKit 0x00007fff7737e5b4 _DPSNextEvent + 1120
9 com.apple.AppKit 0x00007fff77af8d6b -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 2789
10 com.apple.AppKit 0x00007fff77372f35 -[NSApplication run] + 926
11 com.apple.AppKit 0x00007fff7733d850 NSApplicationMain + 1237
12 libdyld.dylib 0x00007fff8ee4a255 start + 1

Thread 1:
0 libsystem_kernel.dylib 0x00007fff8ef78fda __semwait_signal + 10
1 libsystem_c.dylib 0x00007fff8eeffb72 nanosleep + 199
2 libc++.1.dylib 0x00007fff8da2b65b std::__1::this_thread::sleep_for(std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > const&) + 80
3 com.apple.JavaScriptCore 0x00007fff7c6f3123 bmalloc::Heap::scavenge(std::__1::unique_lock<bmalloc::StaticMutex>&, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000l> >) + 275
4 com.apple.JavaScriptCore 0x00007fff7c6f2ed4 bmalloc::Heap::concurrentScavenge() + 68
5 com.apple.JavaScriptCore 0x00007fff7c6f4551 bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop() + 97
6 com.apple.JavaScriptCore 0x00007fff7c6f4459 bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadEntryPoint(bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>*) + 9
7 com.apple.JavaScriptCore 0x00007fff7c6f470d void* std::__1::__thread_proxy<std::__1::tuple<void (*)(bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>*), bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>*> >(void*) + 93
8 libsystem_pthread.dylib 0x00007fff8f061aab _pthread_body + 180
9 libsystem_pthread.dylib 0x00007fff8f0619f7 _pthread_start + 286
10 libsystem_pthread.dylib 0x00007fff8f0611fd thread_start + 13

Thread 2:
0 libsystem_pthread.dylib 0x00007fff8f0611e0 start_wqthread + 0

Thread 3:: com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0x00007fff8ef7138a mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff8ef707d7 mach_msg + 55
2 com.apple.CoreFoundation 0x00007fff7984ee84 __CFRunLoopServiceMachPort + 212
3 com.apple.CoreFoundation 0x00007fff7984e301 __CFRunLoopRun + 1361
4 com.apple.CoreFoundation 0x00007fff7984db54 CFRunLoopRunSpecific + 420
5 com.apple.CFNetwork 0x00007fff789bc680 +[NSURLConnection(Loader) _resourceLoadLoop:] + 313
6 com.apple.Foundation 0x00007fff7b290c6d __NSThread__start__ + 1243
7 libsystem_pthread.dylib 0x00007fff8f061aab _pthread_body + 180
8 libsystem_pthread.dylib 0x00007fff8f0619f7 _pthread_start + 286
9 libsystem_pthread.dylib 0x00007fff8f0611fd thread_start + 13