sending email using smtp in java

Hi all,

I am trying to send and email to through my company mail server. Following is my code

package com.tbss;

import javax.mail.*; import javax.mail.internet.*;

import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.util.*;

class tester {

public String toMD5(String string){

    byte[] defaultBytes = string.getBytes();
    try{
        MessageDigest algorithm = MessageDigest.getInstance("MD5");
        algorithm.reset();
        algorithm.update(defaultBytes);
        byte messageDigest[] = algorithm.digest();

        StringBuffer hexString = new StringBuffer();
        for (int i=0;i<messageDigest.length;i++) {
            hexString.append(Integer.toHexString(0xFF & messageDigest[i]));
        }
        String foo = messageDigest.toString();
        System.out.println("string "+string+" md5 version is "+hexString.toString());
        string=hexString+"";            
    }catch(NoSuchAlgorithmException nsae){
        nsae.printStackTrace();
    }
    return string;
}

public static void main(String args[]) { tester t=new tester(); String userName=t.toMD5("user"); String password=t.toMD5("password"); System.out.println("user name: "+userName); System.out.println("password: "+password); Properties props = new Properties(); props.put("mail.smtp.host" , "host"); props.put("mail.stmp.user" , userName);

  //To use TLS
 // props.put("mail.smtp.auth", "true"); 
  //props.put("mail.smtp.starttls.enable", "true");
  props.put("mail.smtp.password", password);
  //To use SSL
  props.put("mail.smtp.socketFactory.port", "465");
  props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
  props.put("mail.smtp.startssl.enable", "true");
  props.put("mail.smtp.auth", "true");
  props.put("mail.smtp.port", "25");

  SmtpAuthenticator authenticator=new SmtpAuthenticator();
  System.out.println("username: "+authenticator.getPasswordAuthentication().getUserName());
  Session session  = Session.getInstance( props , authenticator);
  session.setDebug(true);
  String to = "[email protected]";
  String from = "[email protected]";
  String subject = "Testing...";
  Message msg = new MimeMessage(session);
    try {
      msg.setFrom(new InternetAddress(from));
      msg.setRecipient(Message.RecipientType.TO , new InternetAddress(to));
      msg.setSubject(subject);
      msg.setText("Working fine..!");
      Transport transport = session.getTransport("smtp");
      transport.connect( "host" , 25 , userName , password );
      transport.send(msg);
      System.out.println("fine!!");
     }  catch(Exception exc) {
            System.out.println(exc);
        }

} static class SmtpAuthenticator extends Authenticator { public SmtpAuthenticator() {

        super();
    }

    @Override
    public PasswordAuthentication getPasswordAuthentication() {
        tester t=new tester();

     String username = t.toMD5("user");
     String password = t.toMD5("password");
        if ((username != null) && (username.length() > 0) && (password != null)
          && (password.length   () > 0)) {

            return new PasswordAuthentication(username, password);
        }

        return null;
    }
}

}

When i run this program i am getting following exception:

DEBUG: setDebug: JavaMail version 1.4.4 DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc] DEBUG SMTP: useEhlo true, useAuth true DEBUG SMTP: trying to connect to host "mail.tata-bss.com", port 25, isSSL false 220 IHGWTMEX07.SerWizSol.com Microsoft ESMTP MAIL Service ready at Wed, 21 Dec 2011 14:26:07 +0530 DEBUG SMTP: connected to host "host", port: 25

EHLO A5173423E.SerWizSol.com 250-IHGWTMEX07.SerWizSol.com Hello [10.64.170.164] 250-SIZE 250-PIPELINING 250-DSN 250-ENHANCEDSTATUSCODES 250-X-ANONYMOUSTLS 250-AUTH NTLM 250-X-EXPS GSSAPI NTLM 250-8BITMIME 250-BINARYMIME 250-CHUNKING 250-XEXCH50 250 XRDST DEBUG SMTP: Found extension "SIZE", arg "" DEBUG SMTP: Found extension "PIPELINING", arg "" DEBUG SMTP: Found extension "DSN", arg "" DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg "" DEBUG SMTP: Found extension "X-ANONYMOUSTLS", arg "" DEBUG SMTP: Found extension "AUTH", arg "NTLM" DEBUG SMTP: Found extension "X-EXPS", arg "GSSAPI NTLM" DEBUG SMTP: Found extension "8BITMIME", arg "" DEBUG SMTP: Found extension "BINARYMIME", arg "" DEBUG SMTP: Found extension "CHUNKING", arg "" DEBUG SMTP: Found extension "XEXCH50", arg "" DEBUG SMTP: Found extension "XRDST", arg "" DEBUG SMTP: Attempt to authenticate DEBUG SMTP: check mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM DEBUG SMTP: mechanism LOGIN not supported by server DEBUG SMTP: mechanism PLAIN not supported by server DEBUG SMTP: mechanism DIGEST-MD5 not supported by server DEBUG SMTP: useEhlo true, useAuth true DEBUG SMTP: trying to connect to host "mail.tata-bss.com", port 25, isSSL false 220 IHGWTMEX07.SerWizSol.com Microsoft ESMTP MAIL Service ready at Wed, 21 Dec 2011 14:26:08 +0530 DEBUG SMTP: connected to host "mail.tata-bss.com", port: 25

EHLO A5173423E.SerWizSol.com 250-IHGWTMEX07.SerWizSol.com Hello [10.64.170.164] 250-SIZE 250-PIPELINING 250-DSN 250-ENHANCEDSTATUSCODES 250-X-ANONYMOUSTLS 250-AUTH NTLM 250-X-EXPS GSSAPI NTLM 250-8BITMIME 250-BINARYMIME 250-CHUNKING 250-XEXCH50 250 XRDST DEBUG SMTP: Found extension "SIZE", arg "" DEBUG SMTP: Found extension "PIPELINING", arg "" DEBUG SMTP: Found extension "DSN", arg "" DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg "" DEBUG SMTP: Found extension "X-ANONYMOUSTLS", arg "" DEBUG SMTP: Found extension "AUTH", arg "NTLM" DEBUG SMTP: Found extension "X-EXPS", arg "GSSAPI NTLM" DEBUG SMTP: Found extension "8BITMIME", arg "" DEBUG SMTP: Found extension "BINARYMIME", arg "" DEBUG SMTP: Found extension "CHUNKING", arg "" DEBUG SMTP: Found extension "XEXCH50", arg "" DEBUG SMTP: Found extension "XRDST", arg "" DEBUG SMTP: Attempt to authenticate DEBUG SMTP: check mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM DEBUG SMTP: mechanism LOGIN not supported by server DEBUG SMTP: mechanism PLAIN not supported by server DEBUG SMTP: mechanism DIGEST-MD5 not supported by server javax.mail.AuthenticationFailedException: 250-IHGWTMEX07.SerWizSol.com Hello [10.64.170.164] 250-SIZE 250-PIPELINING 250-DSN 250-ENHANCEDSTATUSCODES 250-X-ANONYMOUSTLS 250-AUTH NTLM 250-X-EXPS GSSAPI NTLM 250-8BITMIME 250-BINARYMIME 250-CHUNKING 250-XEXCH50 250 XRDST

Please help me in resolving this problem.

Thanks, Suresh

View Answers

December 21, 2011 at 3:37 PM

Please visit the following link:

Java Mail API