Using Spring to send email over SMTP with Auth

public class EmailServiceTest2 {

	private String fromAddress = "add@example.com";
	private String toAddress = "toAdd@example.com";

	@Test
	public void testSendEmail() {

		SimpleMailMessage msg = new SimpleMailMessage();

		msg.setTo(toAddress);
		msg.setFrom(fromAddress);
		msg.setSubject("Testing spring email sending service");
		msg.setText("This is only a simple test message, nothing special!");

		JavaMailSenderImpl sender = new JavaMailSenderImpl();

		sender.setHost("smtp.example.com");
		sender.setUsername("spring-test");
		sender.setPassword("springtest");

		Properties p = new Properties();

		p.put("mail.smtp.auth", "true");

		sender.setJavaMailProperties(p);
		sender.send(msg);
	}
}