PowerShell currently doesn't support protecting MSG files

[MachineMol]

PowerShell currently doesn't support protecting MSG files with following error message:

Set-AIPFileLabel : Azure Information Protection doesn't support the current file format
At line:1 char:1
+ Set-AIPFileLabel -LabelId xxxx -Path  ...
    + CategoryInfo          : InvalidOperation: (C:\users\xxxx\Desktop\Test.msg:String) [Set-AIPFileLabel], NotSuppor
   tedException
    + FullyQualifiedErrorId : Session ID: b208de73-aae9-43ac-899b-b355af1d218d,Microsoft.InformationProtection.Powersh
   ell.AIP.Commandlets.SetAIPFileLabelCmdLet

I have confirmed this is an expected behavior through "Tech Chat-AIP" Channel. I would like to have the information included under "PowerShell support for the Azure Information Protection client" section, as it currently contains several scenarios on removing protection from .msg files, but not about applying labels.

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Document Details

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• ID: a93961dd-63a4-e584-4faa-a905a38964e3
• Version Independent ID: 0fe5c8d8-31ef-27f4-b66a-dc93a402aea5
• Content: Known issues - Azure Information Protection
• Content Source: Azure-RMSDocs/known-issues.md
• Service: information-protection
• GitHub Login: @aashishr
• Microsoft Alias: aashishr