sending mail from apache tomcat

Question

I am working on a web project using Tomcat 6 as my webserver and JSP as frontend. I want to send a mail from the web server to an email account. How can I achieve this?

Answer 1

This works fine (gmail example) :

import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class SendMail {

    public static void main(String[] args) {

        final String username = "your_usename_goes_here";
        final String password = "your_password_goes_here";

        Properties props = new Properties();
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.starttls.enable", "true");
        props.put("mail.smtp.host", "smtp.gmail.com");
        props.put("mail.smtp.port", "587");

        Session session = Session.getInstance(props,
          new javax.mail.Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(username, password);
            }
          });

        try {

            Message message = new MimeMessage(session);
            message.setFrom(new InternetAddress("fromSomeone@gmail.com"));
            message.setRecipients(Message.RecipientType.TO,
                InternetAddress.parse("toSomeone@gmail.com"));
            message.setSubject("A testing mail header !!!");
            message.setText("Dear Mail Crawler,"
                + "\n\n No spam to my email, please!");

            Transport.send(message);

            System.out.println("Done");

        } catch (MessagingException e) {
            throw new RuntimeException(e);
        }
    }
}