Outlook ReportItem.Body returning messed up encoding for some users

I just had this happen to my VBA function in Outlook that processes email bounce backs for orders and marks those orders as requiring attention. The original email in outlook looks fine but when I attempt to process it, the characters change to Chinese and Report.Body just shows question marks.

I found using StrConv to convert to Unicode could get me the correct body contents for processing.

Dim strBody as String
strBody = StrConv(Report.Body, vbUnicode)

Yes, there is a problem with ReportItem.Body property in the Outlook Object Model (present in Outlook 2013 and 2016) - you can see it in OutlookSpy: select an NDR message, click Item button, select the Body property - it will be garbled. Worse than that, once the report item is touched with OOM, Outlook will display the same junk in the preview pane.

The report text is stored in various MAPI recipient properties (click IMessage button in OutlookSpy and go to the GetRecipientTable tab). The problem is the ReportItem object does not expose the Recipients collection. The workaround is to either use Extended MAPI (C++ or Delphi) or Redemption (any language) - its ReportItem.ReportText property does not have this problem:

set oItem = Application.ActiveExplorer.Selection(1)
set oSession = CreateObject("Redemption.RDOSession")
oSession.MAPIOBJECT = Application.Session.MAPIOBJECT
set rItem = oSession.GetRDOObjectFromOutlookObject(oItem)
MsgBox rItem.ReportText