private void doEhlo() {
		// TODO Auto-generated method stub
		ps.println("250-"+Util.getLocalHostIp());
		ps.println("250-PIPELINING");
		ps.println("250-SIZE "+Util.getFileSize());
		ps.println("250-VRFY");
		ps.println("250-ETRN");
		ps.println("250-AUTH LOGIN PLAIN");
		ps.println("250-AUTH=LOGIN PLAIN");
		ps.println("250-ENHANCEDSTATUSCODES");
		ps.println("250-8BITMIME");
		ps.println("250 DSN");
	}