private String receForeignMailContext(String receMailer) {
		//ļ
		File file = new File(Util.DEFAULTMAILPATH+File.separator+receMailer+File.separator+"ReceiveMail");
		Util.mkdirs(file);
		file = new File(file, File.separator+Util.getMailName());//ļ·
		BufferedWriter bw = Util.getBufferedWriter(file);//
		String subMail = null;
		try {
			while(!(subMail=Util.getInput(br)).equals(".")){
					bw.write(subMail);
					bw.newLine();
					bw.flush();
			}
			bw.write(".");
			bw.close();
			//ظʼճɹ
			Util.println(ps, "250 Mail OK ");
			return "ok";
			
		} catch (IOException e) {
//			e.printStackTrace();
			return "NullPointerException";
		}
//		return "ok";
	}