An interoperability error occurred. Association error with entity {object name}, invalid message in chunking/segmentation. The message has not negotiated a proper chunking/segmentation size. Control Block Index: {index name}. Contact Microsoft Technical Support. [{value}{value}{value}{value}] (14)

Details
Product: Exchange
Event ID: 1006
Source: MSExchangeMTA
Version: 6.0
Component: Message Transfer Agent
Symbolic Name: MTA01006
Message: An interoperability error occurred. Association error with entity {object name}, invalid message in chunking/segmentation. The message has not negotiated a proper chunking/segmentation size. Control Block Index: {index name}. Contact Microsoft Technical Support. [{value}{value}{value}{value}] (14)
   
Explanation
The diagnostics logging levels of the message transfer agent (MTA) interface and interoperability categories should be increased to create interoperability logs.These logs are text logs that consist of the binary contents of communication among MTAs in different sites and between MTA and client applications within a site. They are stored in the \Exchsrvr\Mtadata directory. The current log is always named Bf0.log. Prior logs are named Bfx.log, where x increases as the age of the log increases.
   
User Action
To help Microsoft Product Support Services track down the problem, create log files. For more information, see Knowledge Base articles Q163032 and Q168906. To create Ap*.log files, in the Diagnostics Logging tab of the Server Properties dialog box, select MSExchangeMTA and set the logging level of the Interoperability and Interface categories to Maximum. To create Bf*.log files, set the logging level of the APDU and X.400 Service categories to Maximum.Save all MTA log files (Mtadata\*.log), Event Viewer output, and database files. Contact Microsoft Product Support Services.You can enable text event log files (Ev*.log) by modifying the Registry. Contact Microsoft Product Support Services for assistance.

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