An error occurred while performing an ASN.1 decode. Syntax server error code: {error code}, Primitive type: {name}, Error detected at offset {value}. Contact Microsoft Technical Support. [{value}{value}{value}{value}] (14)

Details
Product: Exchange
Event ID: 45
Source: MSExchangeMTA
Version: 6.0
Component: Message Transfer Agent
Symbolic Name: MTA00045
Message: An error occurred while performing an ASN.1 decode. Syntax server error code: {error code}, Primitive type: {name}, Error detected at offset {value}. Contact Microsoft Technical Support. [{value}{value}{value}{value}] (14)
   
Explanation
ASN.1 is an ISO/ITU data encoding standard that refers to Specification of Basic Encoding Rules for Abstract Syntax Notation One.The fully encoded ASN.1 envelope is in theMicrosoft Exchange Server APDU (Application Protocol Data Unit) logs, which are binary representations of communication among message transfer agents (MTAs) in different sites and between MTA and client applications within a site. APDU logs are enabled when the logging levels of the X.400 service and APDU categories are both set to Medium or greater after you select MSExchangeMTA on the Diagnostics Logging tab of the Server Properties dialog box. To create Bf*.log files, set the logging level of the APDU and X.400 categories to Maximum.These text logs are stored in the 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
The bad data may be viewed in the APDU log in Mtadata\Bf0.log. Reload the ASN.1 template files from the Exchange server installation compact disc. For more information, see Knowledge Base articles Q168906 and Q163032.

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