Mail.app seems there is a nil error somewhere. tried to delete container and library contents for mail. after mail.app begins fetching new mails crash occurs...09.06.15 02:10:10,521 Mail[5854]: An exception occurred during invocation of -[MFMessageRouter _routeQueuedMessages]09.06.15 02:10:10,522 Mail[5854]: *** setObjectForKey: key cannot be nil09.06.15 02:10:10,523 Mail[5854]: ( 0 CoreFoundation 0x00007fff83a9031c __exceptionPreprocess + 172 1 libobjc.A.dylib 0x00007fff8a069c48 objc_exception_throw + 48 2 CoreFoundation 0x00007fff8396cb78 -[__NSDictionaryM setObject:forKey:] + 2296 3 MailCore 0x00007fff81d21ca6 -[MCJunkRecorder setImageJunkInfo:forKey:] + 98 4 MailCore 0x00007fff81d45861 -[MCMimePart(StringRendering) renderString:] + 3030 5 MailCore 0x00007fff81d449cc -[MCMimeBody(StringRendering) renderStringForJunk:renderPart:] + 264 6 MailCore 0x00007fff81d44c5b -[MCMimeBody(StringRendering) renderString:] + 141 7 MailCore 0x00007fff81d4477f -[MCMessage(StringRendering) renderBody:] + 98 8 MailC