SMTP Email in Java

[lilbit02]

I'm trying to figure this out with out any Java experience. I'm trying to write a program that will send a SMTP email. I was given a shell and I do know how to establish a connection. My next question is how do I Send MAIL FROM command, Send RCPT TO command, Send DATA command, Send message data and End with line with a single period. Will this be just a matter or printing this information? Someone please help me figure this out.

 
import java.io.*;
import java.net.*;
 
public class EmailSender
{
   public static void main(String[] args) throws Exception
   {
      // Establish a TCP connection with the mail server.
 
    Socket TCPConnection = new TCPConnection("mail.bellsouth.net, 25");
 
      // Create a BufferedReader to read a line at a time.
 
      InputStream is = socket.getInputStream();
      InputStreamReader isr = new InputStreamReader(is);
      BufferedReader br = new BufferedReader(isr);
 
      // Read greeting from the server.
 
      String response = br.readLine();
      System.out.println(response);
      if (!response.startsWith("220")) {
         throw new Exception("220 reply not received from server.");
      }
 
      // Get a reference to the socket's output stream.
      OutputStream os = socket.getOutputStream();
 
      // Send HELO command and get server response.
      String command = "HELLO Nikki\r\n";
      System.out.print(command);
      os.write(command.getBytes("US-ASCII"));
      response = br.readLine();
      System.out.println(response);
      if (!response.startsWith("250")) {
         throw new Exception("250 reply not received from server.");
      }
 
      // Send MAIL FROM command.
 
 
      // Send RCPT TO command.
 
 
      // Send DATA command.
 
 
      // Send message data.
 
      // End with line with a single period.
 
 
      // Send QUIT command.
 
   }
}
 
 
 
 

[lilbit02]

I did get my code to compile and run. I also established a connection with the mail server but I can't seem to get an email sent. Can someone please help.

import java.io.*;
import java.net.*;
 
public class EmailAgent
{
   public static void main(String[] args) throws Exception
   {
      // Establish a TCP connection with the mail server.
 
      Socket TCPConnection = new Socket("mail.bellsouth.net", 25);
 
      // Create a BufferedReader to read a line at a time.
 
      InputStream is = TCPConnection.getInputStream();
      InputStreamReader isr = new InputStreamReader(is);
      BufferedReader br = new BufferedReader(isr);
 
      // Read greeting from the server.
 
      String response = br.readLine();
      System.out.println(response);
      if (!response.startsWith("220")) {
         throw new Exception("220 reply not received from server.");
      }
 
      // Get a reference to the socket's output stream.
      OutputStream os = TCPConnection.getOutputStream();
 
      // Send HELLO command and get server response.
      //String command = "HELLO Nikki\r\n";
 
        // Send FROM command.
      String command = "MAIL FROM:Nikki<[e-mail]>\r\n";
      // Send RCPT TO command.
      String command2 = "RCPT TO:Nikki<[e-mail]>\r\n";
      // Send DATA command.
      String command3 = "DATA\r\n";
      // Subject
      String command4 = "SUBJECT: DataComm Programming Assignment\r\n\r\n";
      // Send message data.
      String command5 = "HELLO Nikki. This is your java programming assignment for DataComm\r\n";
      // End with line with a single period.      
      String command6 = ".\r\n";
      // Send QUIT command.
      String command7 = "QUIT\r\n";
 
      System.out.print(command);
      System.out.print(command2);
      System.out.print(command3);
      System.out.print(command4);
      System.out.print(command5);
      System.out.print(command6);
//      System.out.print(command7);      
      os.write(command.getBytes("US-ASCII"));
      response = br.readLine();
      System.out.println(response);
      if (!response.startsWith("250")) {
         throw new Exception("250 reply not received from server.");
      }
 
   }
}
 
 

[lilbit02]

Nevermind I Got It To Work.

[vfly7]

This is one of the example for this SMTP Email in Java Solution.
Hope this will help you.
Thanks.

Code(EmailAgent.java):-
import java.io.*;
import java.net.*;
import java.util.*;
import java.text.*;
import javax.swing.*;

public class EmailAgent
{
public static void main (String [] args) throws Exception
{
//Fill in the require information
String mailServer = ""; //Fill in the mail server address
String to = ""; //Fill in the receiver email address
String from = ""; //Fill in the sender email address
String msg = ""; //Fill in the message that want to be send

//Establish a TCP connection with the mail server
Socket socket = new Socket(mailServer,25);

//Create a BufferedReader to read a line at a time.
InputStream is = socket.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);

//Read greeting from the server
String response = br.readLine();
System.out.println(response);

//DataOutputStream
DataOutputStream toServer = new DataOutputStream(socket.getOutputStream());

if (!response.startsWith("220"))
{
throw new Exception("220 reply not received from server.");
}

//Get a reference to the socket's output stream.
OutputStream os = socket.getOutputStream();

//Send HELO command and get server response.
String command = "HELO alice\r\n";
System.out.print(command);
os.write(command.getBytes("US-ASCII"));
response = br.readLine();
System.out.println(response);
if (!response.startsWith("250"))
{
throw new Exception("250 reply not received from server.");
}

//Send MAIL FROM command
String cmdFrom = "MAIL FROM:<" + from + ">\r\n";
toServer.writeBytes(cmdFrom);
response = br.readLine();
System.out.println(response);

//Send RCPT TO command
String cmdTo = "RCPT TO:<" + to + ">\r\n";
toServer.writeBytes(cmdTo);
response = br.readLine();
System.out.println(response);

//Send DATA command
String cmdData = "DATA\r\n";
toServer.writeBytes(cmdData);
response = br.readLine();
System.out.println(response);

//Send message data
String cmdMsg = msg + "\r\n";

//Date
SimpleDateFormat format = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss 'GMT'");
String dateString = format.format(new Date());
String cmdDate = "Date: " + dateString + "\r\n";

//Send write to fill in email form
String cmdAll = "From: " + from + "\r\n" + "To: " + to + "\r\n" + cmdDate + "\r\n" + cmdMsg + ".";
toServer.writeBytes(cmdAll);

//End with line with a single period
String cmdCrlf = "\r\n";
toServer.writeBytes(cmdCrlf);
response = br.readLine();
System.out.println(response);

//Send Quit command
String cmdQuit = "QUIT\r\n";
toServer.writeBytes(cmdQuit);
response = br.readLine();
System.out.println(response);

socket.close();

System.out.println(cmdFrom);
System.out.println(cmdTo);
System.out.println(cmdData);
System.out.println(cmdMsg);
System.out.println(cmdQuit);
System.out.println(cmdCrlf);
}
}

[midofidodido]

Nevermind I Got It To Work.

Well, me too had the same problem, i used this code, and still no mail is being sent.
Can you help me regarding this ?

Thanks,
Mohamed

[JosAH]

Why don't you people use Sun's Java Mail API?

kind regards,

Jos

[N002213F]

Why don't you people use Sun's Java Mail API?

kind regards,

Jos

Finally someone sees the light

[JosAH]

Finally someone sees the light

I've decided to put the download link in the "Read This First" article; people seem
to be unable to google for it themselves. Our solar system must be floating through
a huge cloud of silly particles and we haven't hit the center yet I'm afraid.

kind regards,

Jos