static boolean checkanswer(InputStream InStr, String MustBe)
  {
   try
    {
     int ch = 0, i = 0;
     String str = "";
     while(ch != -1) {
       i++;
       ch = InStr.read();
       if (i<=3){
          str+=(char)(ch);
          }
       }
     if (str != MustBe) { return(false); }
    } catch (IOException e) { return(false); }
    return(true); 
   }
 
  public static int sendmail(String HostPort, String rcpt, String mail, String data)
  {
    try
     {
      SocketConnection sc = (SocketConnection)Connector.open("socket://"+HostPort);
      sc.setSocketOption(SocketConnection.LINGER, 10);
      sc.setSocketOption(SocketConnection.KEEPALIVE, 10);
   
      InputStream is  = sc.openInputStream();
      OutputStream os = sc.openOutputStream(); 
      
      os.write(("HELO smtp.mail.ru\n").getBytes());
      if (!checkanswer(is,"250")) { return(1); } 
      
      os.write(("MAIL FROM: "+mail+"\n").getBytes());
      if (!checkanswer(is,"250")) { return(2); }
 
      os.write(("RCPT TO: "+rcpt+"\n").getBytes());
      if (!checkanswer(is,"250")) { return(3); }

      os.write(("DATA\n").getBytes());
      if (!checkanswer(is,"354")) { return(4); }

      os.write((data+"\n").getBytes());
      os.write((".\n").getBytes());
      if (!checkanswer(is,"250")) { return(5); }

      os.write(("QUIT\n").getBytes());

      is.close();
      os.close();
      sc.close();  

    } catch (IOException e) { return(6); }
    return(0); 
  }