public static void Run()
{
// ExStart:DetectTNEFMessage
// The path to the File directory.
string dataDir = RunExamples.GetDataDir_Email() + "Message.eml";
MailMessage mail = MailMessage.Load(dataDir);
bool isTnef = mail.OriginalIsTnef;
// ExEnd:DetectTNEFMessage
}
}