Sending a mail from java application to exchange server

[srikanth arroju]

Hello All,

Im trying to send mail through a java application

    

import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
 
public class SendMailExchange {
	public boolean sendMail() {
		try {
			String from = "[e-mail]";
			String to = "[e-mail]";
			String host = "xxx.xxx.x.x";
			String username = "[e-mail]";
			String password = "xxxx";
 
			Properties p = System.getProperties();
			//p.put("mail.smtp.host", host);
			p.put("mail.transport.protocol", "smtp");
			p.put("mail.smtp.port", "25");
			p.put("mail.smtp.auth", "true");
 
		//	p.put("mail.smtp.allow8bitmime", "true");
		//	p.put("mail.smtp.auth.mechanisms", "GSSAPI NTLM");
		//	p.put("mail.smtp.starttls.enable","true");
		//	p.put("mail.smtp.starttls.required","true");
 
	               Authenticator auth = new SMTPAuthenticator(username, password);
			Session session = Session.getInstance(p, auth);
			// Session session = Session.getInstance(p);
			session.setDebug(true);
 
			MimeMessage message = new MimeMessage(session);
			message.setFrom(new InternetAddress(from));
			message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
			message.setSubject("Hello JavaMail");
			message.setText("Welcome to JavaMail");
			message.saveChanges();
 
			// Send message
			Transport transport = session.getTransport("smtp");
			transport.connect(host, username, password);
 
			transport.sendMessage(message, message.getAllRecipients());
			transport.close();
			// Transport.send(message);
		} catch (Exception e) {
			e.printStackTrace();
			return false;
		}
		return true;
	}
 
	public static void main(String args[]) {
		new SendMailExchange().sendMail();
	}
 
	class SMTPAuthenticator extends Authenticator {
 
		String username;
		String password;
 
		public SMTPAuthenticator(String username, String password) {
			super();
			this.username = username;
			this.password = password;
		}
 
		public PasswordAuthentication getPasswordAuthentication(
				String username, String password) {
			return new PasswordAuthentication(username, password);
		}
	}
}

but it is throwing an exception

   

	at SendMailExchange.main(SendMailExchange.java:53)
com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.1 Client was not authenticated

	at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:1388)
	at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:959)
	at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:583)
	at SendMailExchange.sendMail(SendMailExchange.java:42)
	at SendMailExchange.main(SendMailExchange.java:53)

[Ankit Garg]

String host = "xxx.xxx.x.x";
String username = "[e-mail]";
String password = "xxxx";

Have you explicitly set these values like this when you posted the code here or are you actually using these values?? The error says that your username, password is not correct...

[srikanth arroju]

for post i have changed the values.

  

String from = "[e-mail]";
			String to = "[e-mail]";
			String host = "192.168.1.4";
			String username = "administrator";
			String password = "xxxxx"

 

[Ulf Dittmer]

This is where the @Override annotation comes in very handy. Why don't you add that to the getPasswordAuthentication method and recompile?

[srikanth arroju]

i have added @override annotation to the method

    
@Override

		public    PasswordAuthentication getPasswordAuthentication(
				String username, String password) {
			return new PasswordAuthentication(username, password);
		}

but it is throwing a compiler error



The method getPasswordAuthentication(String, String) of type SendMailExchange.SMTPAuthenticator
must override or implement a supertype method

[Ulf Dittmer]

That tells you that the method which you thought was overriding some other method does not, in fact, do that. Now: how do you find out what the method should look like instead, so that it *does* override some other method?

[Rob Spoor]

That's exactly what Ulf meant - you have not overridden the method but overloaded it instead. Check the correct signature in the Javadocs: javax.mail.Authenticator