R: 220 BBN-UNIX.ARPA Simple Mail Transfer Service Ready
         S: HELO USC-ISIF.ARPA
         R: 250 BBN-UNIX.ARPA

         S: MAIL FROM:<Smith@USC-ISIF.ARPA>
         R: 250 OK

         S: RCPT TO:<Jones@BBN-UNIX.ARPA>
         R: 250 OK

         S: RCPT TO:<Green@BBN-UNIX.ARPA>
         R: 550 No such user here

         S: RCPT TO:<Brown@BBN-UNIX.ARPA>
         R: 250 OK

         S: DATA
         R: 354 Start mail input; end with <CRLF>.<CRLF>

         S: Date: 23 Oct 81 11:22:33
         S: From: Smith@Alpha.ARPA
         S: To: Jones@Beta.ARPA,Green@Beta.ARPA,Brown@Beta.ARPA
         S: Subject: Mail System Problem

         S: Blah blah blah...
         S: ...etc. etc. etc.
         S: .
         R: 250 OK

         S: QUIT
         R: 221 BBN-UNIX.ARPA Service closing transmission channel

         The mail from Smith has now been accepted for Jones and Brown.  
         Green did not have a mailbox at host BBN-UNIX.ARPA.

import java.net.*;
import java.io.*;

public class MailSend{
	private static String messageSys[]= new String[4],
	               messageData[]=new String[5],hostName=null,
			sender = "<myName@myDomain.bg>";	
	private static InetAddress mServer= null;
	public static void initStrings(){	
		messageSys[0]="HELO "+hostName+"\r\n";
		messageSys[1]="MAIL FROM: "+sender+ "\r\n";
		messageSys[2]="RCPT TO: ";
		messageSys[3]="DATA\r\n";
		messageData[0]="From: "+sender+"\r\n";
		messageData[1]="To:";
		messageData[2]="Subject: ";
		messageData[3]= "";
		messageData[4]=".\r\n";	
	}
	public static void init(){
		try{
			mServer=InetAddress.getByName("myMailServer.bg");
			hostName= InetAddress.getLocalHost().getHostName();
		}catch(Exception e){System.out.println("Exception"+e); }
		initStrings();
	}
	public static void putData(String arg[]){
		messageSys[2]+="<"+arg[0]+">\r\n";
		messageData[1]+=arg[0]+"\r\n";
		messageData[2]+= arg[1]+"\r\n";
		messageData[3]= arg[2]+"\r\n";
		
	}
	public static void send (){
		try{                                 // или c timeout 10000 ms:
		        Socket s=null;		    // Socket s = new Socket();	
			s = new Socket(mServer,25);  // s.connect(new InetSocketAddress(
                                                     //    mserver,25),10000);
			BufferedReader in = new BufferedReader(
                    new InputStreamReader(s.getInputStream()));
			PrintWriter out = new PrintWriter(s.getOutputStream());
			System.out.println(in.readLine());
			for(int i=0; i<messageSys.length;i++){
				out.print(messageSys[i]);
				System.out.println(messageSys[i]);
				out.flush();
				System.out.println(in.readLine());
			}
			for(int i=0;i<messageData.length;i++){
				out.print(messageData[i]);
				System.out.println(messageData[i]);
				out.flush();
			}
			System.out.println(in.readLine());
			s.close();
		}
		 catch(Exception e) {System.out.println(e); }
		initStrings();
	} 
}

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

class Gui{
	JTextArea ta;
	JTextField sb,to;
	JLabel ls,lt;
	JButton send;
	Panel p= new Panel();
	Gui(JFrame f){
		ta = new JTextArea(10,20);
		send = new JButton("send");
		to = new JTextField("",20);
		lt= new JLabel("To:");
		sb = new JTextField("",20);
		ls = new JLabel("Subject:");
		send.addActionListener(new S());
		p.add(lt);
		p.add(to);
		p.add(ls);
		p.add(sb);
		f.add(p,BorderLayout.NORTH);
		f.add(ta, BorderLayout.CENTER);
		f.add(send, BorderLayout.SOUTH);
		MailSend.init();
	}
	class S implements ActionListener{
		public void actionPerformed(ActionEvent e) {
			String message[]= {to.getText(),sb.getText(),ta.getText()};
			MailSend.putData(message);
			MailSend.send();
		}
	}

	public static void main(String args[]){
		JFrame frame =new JFrame("Mail Sender");
		Gui gui = new Gui(frame);
		frame.setSize(600,400);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setVisible(true);
	}
}