The remote server returned an error (407) Proxy Authentication Required (4325091)

The error message below is encountered with the Uploading to Azure operation:

Uploaded 0 File Blobs (Documents) in 20835ms
Failed Blob Uploads: 100
-> 00000000000006A5.dat [C:\ProgramData\Metalogix\da6b54909d6a4f0cac1072f5bbdf5b27\Blobs\00000000000006A5.dat]
Error: The remote server returned an error: (407) Proxy Authentication Required.
   at Microsoft.WindowsAzure.Storage.Core.Executor.Executor.ExecuteSync[T](RESTCommand`1 cmd, IRetryPolicy policy, OperationContext operationContext)
   at Microsoft.WindowsAzure.Storage.Blob.CloudBlockBlob.UploadFromStreamHelper(Stream source, Nullable`1 length, AccessCondition accessCondition,
BlobRequestOptions options, OperationContext operationContext)
   at Metalogix.Azure.ConsoleProcessor.AzureBlobStorageManager.UploadBlob(String containerUri, String blobName, String localBlobFilePath, Byte[] encryptionKey)
-> 00000000000006A8.dat [C:\ProgramData\Metalogix\da6b54909d6a4f0cac1072f5bbdf5b27\Blobs\00000000000006A8.dat

The Azure Console Processor (Metalogix.Azure.ConsoleProcessor.exe) is used for all Azure related functions (e.g. uploading to Azure, monitoring, etc.). So, if a proxy connection is being used for a migration job, it has to configured accordingly.

For Content Matrix version 9.0 or above, configure proxy as explained in the user guide here

1. Close the Content Matrix Console.
2. Navigate to C:\Program Files (x86)\Metalogix\Content Matrix Consoles\SharePoint Edition, then open the Metalogix.Azure.ConsoleProcessor.exe.config file using any text editor (e.g. Notepad).
3. Add the following:

1. Save the file.
2. Re-launch the Content Matrix Console, then run the migration job again.