enviar email java

[djpinto]

Bom dia!

Alguém sabe como posso criar uma função de envio de email em java?

Cumps
Diogo Pinto

[Informatica]

[font=Menlo, Monaco, Consolas, 'Courier New', monospace] // File Name SendEmail.java

import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;

public class SendEmail
{
public static void main(String [] args)
{
// Recipient's email ID needs to be mentioned.
String to = "abcd@gmail.com";

// Sender's email ID needs to be mentioned
String from = "web@gmail.com";

// Assuming you are sending email from localhost
String host = "localhost";

// Get system properties
Properties properties = System.getProperties();

// Setup mail server
properties.setProperty("mail.smtp.host", host);

// Get the default Session object.
Session session = Session.getDefaultInstance(properties);

try{
// Create a default MimeMessage object.
MimeMessage message = new MimeMessage(session);

// Set From: header field of the header.
message.setFrom(new InternetAddress(from));

// Set To: header field of the header.
message.addRecipient(Message.RecipientType.TO,
new InternetAddress(to));

// Set Subject: header field
message.setSubject("This is the Subject Line!");

// Now set the actual message
message.setText("This is actual message");

// Send message
Transport.send(message);
System.out.println("Sent message successfully....");
}catch (MessagingException mex) {
mex.printStackTrace();
}
}
}[/font]

[djpinto]

Boas!

Já experimentei mas dá me erro de autenticação 

Cumps
Diogo Pinto