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AnswerAS2 Messages bigger than 1 MB makes a MIC not verified failure

  • Thursday, November 05, 2009 11:58 AMPeter Ungemach Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    Hi all,

    if we receive messages bigger than 1 MB via AS2, the sender get the error "MIC not verified"

    (Though UPXI has sent it successfully there have been some problems with regards its message integrity checking.

     

    Upon investigation the message is experiencing a "MIC not verified" issue. )

    The message itself is correctly processed on our side, but the sender side get everytime an error message.

    Now I am not sure if it is a BizTalk problem while generating the MDNs for those messages or if it is a problem on the sender side.
    Because this side says http://msdn.microsoft.com/en-us/library/bb226414(BTS.20).aspx messages up to 96 MB could be processed.

    Kind regards
    Peter

Answers

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  • Thursday, November 05, 2009 7:11 PMBen Cline1MVP, ModeratorUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     

    Is the error message being received by the partner's AS2 provider or in an HTTP header from BizTalk? It sounds like an issue related to the partner processing the file.

    Thanks,


    If this answers your question, please use the "Answer" button to say so | Ben Cline
  • Friday, November 06, 2009 11:16 AMPeter Ungemach Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    I am waiting on an answer of our partner about this point
  • Friday, November 06, 2009 11:58 AMManuel Stern Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     Answer
    If there is compression turned on, and this is BTS R2, you may test KB 970075:
    http://support.microsoft.com/kb/970075/en-us
  • Thursday, November 12, 2009 9:31 AMWen-Jun ZhangMSFT, ModeratorUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    Please check if the error doesn't exist when compression is set to OFF. As I know, the issue in KB970075 has been fixed in BizTalk 2009.
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