A text value of true for the ConvertHtmlCodePageToUTF8 element indicates that the HTML body is converted to UTF8. A text value of false indicates that the HTML body is not converted to UTF8.
The default value of true is used if the ConvertHtmlCodePageToUTF8 element is not specified in a request.
The schema that describes this element is located in the IIS virtual directory that hosts Exchange Web Services.This element was introduced in Exchange Server 2010 Service Pack 1 (SP1).