EmailSender for Netbeans

package emailsender;

/**
 *
 * @author Michael Esposito
 */

import java.io.*;
import java.net.*;
import java.util.logging.Level;
import java.util.logging.Logger;

public class EmailSender {
private static PrintWriter out;
    private static BufferedReader in;


    /**
     * @param args the command line arguments
     */

    public static void main(String[] args) throws Exception{

       //Establish a TCP connection with the mail server.
        Socket echoSocket = null;

        //Apple's SMTP server works perfectly, you can change it if you find a better one.
        String hostname = "smtp.mail.me.com";


        try {
            echoSocket = new Socket(hostname, 587); //587 is the port for SMTP
            out = new PrintWriter(echoSocket.getOutputStream(), true);
            in = new BufferedReader(new InputStreamReader(
                                        echoSocket.getInputStream()));
        } catch (UnknownHostException e) {
            System.err.println("Don't know about host: " + hostname);
            System.exit(1);
        } catch (IOException e) {
            System.err.println("Couldn't get I/O for "
                               + "the connection to: smtp.mail.me.com");
            System.exit(1);
        }


BufferedReader stdIn = new BufferedReader(
                                   new InputStreamReader(System.in));

        String response = null;
        response = in.readLine();

        System.out.println (response);
              if (!response.startsWith ("220")) {
                  System.err.println("220 reply not received from server.");
                  System.exit(1);
                }
       //get a reference to the socket's output stream.
       OutputStream os = echoSocket.getOutputStream();


       //send HELO command and get server response.
            String helocommand = "HELO alice\r\n";
            System.out.print (helocommand);
            os.write (helocommand.getBytes ("US-ASCII"));
            response = in.readLine();
            System.out.println (response);
            if (!response.startsWith("250")) {
                        System.err.println("250 reply not received from server.");
                        System.exit(1);
            }


        //Send MAIL FROM command.
            String mailfromcommand = "MAIL FROM: [email protected]\r\n"; //The e-mail address you would like to spoof.
            System.out.print (mailfromcommand);
            os.write (mailfromcommand.getBytes ("US-ASCII"));
            response = in.readLine();
            System.out.println (response);
            if (!response.startsWith("250")) {
                        System.err.println("250 reply not received from server.");
                        System.out.print("QUIT\r\n");
                        System.exit(1);
            }
        // Send RCPT TO command.
            String rcpttocommand = "RCPT TO: [email protected]\r\n"; //The e-mail address that will be receiving the message.
            System.out.print (rcpttocommand);
            os.write (rcpttocommand.getBytes ("US-ASCII"));
            response = in.readLine();
            System.out.println (response);
            if (!response.startsWith("250")) {
                        System.err.println("250 reply not received from server.");
                        System.out.print("\r\nQUIT");
                        System.exit(1);
            }
        // Send DATA command.
            String datacommand = "DATA\r\n";
            System.out.print (datacommand);
            os.write (datacommand.getBytes ("US-ASCII"));
            response = in.readLine();
            System.out.println (response);
            if (!response.startsWith("354")) {
                        System.err.println("354 reply not received from server.");
                        System.out.print("QUIT\r\n");
                        System.exit(1);
            }

        //Send message data.
             String message = "SUBJECT: Aw yeah!\r\nFROM: [email protected]\r\nTo: Michael\r\nTEXT GOES HERE\r\n";

        //The "FROM" address must be the same as "RCPT TO" above, or the message may be blocked by spam filters.
        //"SUBJECT" and "To: " can be anything
        //Replace "TEXT GOES HERE" with the message. The message must be between the \r\n characters for the SMTP server to accept it.

             System.out.print (message);
             os.write (message.getBytes ("US-ASCII"));

        //End with line with a single period.
            String ender = "\r\n.\r\n";
            System.out.print(ender);
            os.write (ender.getBytes ("US-ASCII"));
            response = in.readLine();
            System.out.println (response);
           if (!response.startsWith("250")) {
                       System.err.println("250 reply not received from server.");
                       System.out.print("QUIT\r\n");
                       System.exit(1);
            }
        //Send QUIT command
            String quit = "QUIT\r\n";
            System.out.print (quit);
            os.write (quit.getBytes ("US-ASCII"));
            response = in.readLine();
            System.out.println (response);
            System.exit(1);
    }
}