This article applies to:

• Trustwave SEG

Symptoms:

• Error in Engine log: DL44000: Unexpected error unpacking message: Error in file type identification
• Sample of error:
  9672 17:11:14.652 DL44000: Unexpected error unpacking message - D:\Marshal\Queues\Incoming\BXXXXXXXXXXXX.000000000001.0005.mml
  Error in file type identification - D:\Marshal\Unpacking\T8\U4\somefile??a.
  9672 17:11:14.652 Processing DeadLetter rules.
  

Causes:

• Repeated errors in file type identifications can arise if a file is not automatically deleted from the unpacking folder.

Resolution:

To resolve this issue:

1. Stop the Controller and Engine services.
2. Manually delete all the files from the T[\d] directories.
3. If a particular file cannot be deleted (in particular if the file name ends with . or contains unprintable characters) you can issue the following command from the Windows command line only:
   
   Del "\\?\d:\marshal\unpacking\t8\4\filename"
    
4. Start the Controller and Engine services.
5. Repeat the steps for each affected processing server.