SMTP & Rich Text

Hi all
I am trying to use the SMTP component in Delphi 5 to send an email in Rich
Text format.  I have set the property to "Enriched".
I load in a Rich Text document to a RTMemo and it looks fine.  I then load
it into the Body of the PostMessage property and send it but all the
formatting disappears when the email comes through.
I have tried saving to a stream and loading back but then all I get is a raw
text message with all the RTF codes.
Any ideas?

Regards
John

........................................
procedure TfrmLetterProcessingRun.EmailDocument;
var
   i: integer;
   p: integer;
   vLine: string;
   TempStream: TMemoryStream;
begin
     EmailBody.Clear;

EmailBody.Lines.LoadFromFile(frmLetterProcessing.tblLetterDocumentLocation.T
ext);
     for i:=0 to EmailBody.Lines.Count-1 do
     begin
          vLine:=EmailBody.Lines[i];
          if Pos('&&',vLine)>0 then
          begin
               p:=Pos('&&Salutation&&',vLine);
               if p>0 then
               begin
                    Delete(vLine,p,14);

Insert(frmLetterProcessing.tblLetterDetailContactSalutation.Value,vLine,p);
               end;
          end;
          EmailBody.Lines[i]:=vLine;
     end;

     SMTP.PostMessage.LocalProgram := 'Marketing v2.0';
     SMTP.PostMessage.FromName := 'GBA Computer Solutions';
     SMTP.PostMessage.FromAddress := tblDocumentEmailFrom.Value;
     SMTP.PostMessage.Subject := tblDocumentEmailDesc.Value;
     SMTP.PostMessage.ToAddress.Clear;
     SMTP.PostMessage.ToAddress.Add('j...@gbasolutions.co.uk');
     SMTP.PostMessage.ToBlindCarbonCopy.Text:='';
     SMTP.PostMessage.ToCarbonCopy.Text:='';
     SMTP.PostMessage.Attachments.Text:='';
     SMTP.PostMessage.Body.Clear;

     try
        TempStream:=TMemoryStream.Create;
        EmailBody.Lines.SaveToStream(TempStream);
        TempStream.Position:=0;
        SMTP.PostMessage.Body.LoadFromStream(TempStream);
     finally
        TempStream.Free;
     end;

     try
        SMTP.SendMail;
     except
           ShowMessage( 'There was a problem sending mail to the SMTP
server.'#13+
                        'Please contact network administator.'#13'IP Address
= '+SMTP.Host);
           Exit;
     end;
end;