internal PureCalendarMessage(PureMimeMessage mimeMessage, MimePart mimePart, Charset charset)
 {
     this.originalCharset = charset;
     this.targetCharset   = charset;
     this.mimeMessage     = mimeMessage;
     this.mimePart        = mimePart;
 }
 public MimeTnefVersions(PureMimeMessage mimeMessage, MimePart tnefPart)
 {
     this.RootPartVersion = mimeMessage.Version;
     if (tnefPart != null)
     {
         this.TnefPartVersion = tnefPart.Version;
         return;
     }
     this.TnefPartVersion = -1;
 }