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The AS2 Decoder failed processing when validating the MIC value returned in the MDN

Details

Field Error Details
Product Name BizTalk Server
Product Version 3.9
Event ID -
Event Source BizTalk Server EDI
Component AS2 Engine
Symbolic Name AS2DecoderMdnMicFailureDuringProcessing
Message Text The AS2 Decoder failed processing when validating the MIC value returned in the MDN. Details of the MDN message are as follows: AS2-From:"{0}" AS2-To:"{1}" MessageID:"{2}" OriginalMessageID:"{3}"

Explanation

This Error/Warning/Information event indicates that the receive pipeline could not process the incoming MDN because the MIC (Message Integrity Check) failed validation.

User Action

To resolve this error, verify that the algorithm used for generating the MDN (in the Signed-Receipt-MICalg header of the original message) is the same as the algorithm specified in the Signed-Receipt-MICalg property for the AS2 Message Receiver. Both should be either SHA1 or MD5. If the algorithm specified is the same, verify that Received-Content-MIC extension field in the second part of the multipart signed MDN message includes a valid MIC digest. If it does, determine why the MDN does not correspond to the interchange that was sent.