GmailでJava Mail

以下のサイトからJava Mailをダウンロード
JavaMail API

export CLASSPATH=$CLASSPATH:/xxx/javamail-1.4.5/mail.jar:.

安全性の低いアプリの許可を有効化
Sign in - Google Accounts

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

public class MailSample {
	public static void main(String[] args) {
		try {
                        Properties props = new Properties();
		        props.put("mail.smtp.host", "smtp.gmail.com");
		        props.put("mail.smtp.port", "465");
		        props.put("mail.smtp.from", "xxx@gmail.com");
			props.put("mail.smtp.auth", "true" );
			Session session = Session.getInstance(props, new Authenticator() {
				@Override
				protected PasswordAuthentication getPasswordAuthentication() {
					return new PasswordAuthentication("xxx@gmail.com", "xxx");
				}
			});

			props.setProperty("mail.smtp.socketFactory.class", 
                       "javax.net.ssl.SSLSocketFactory");
			props.setProperty("mail.smtp.socketFactory.fallback", "false");
			props.setProperty("mail.smtp.socketFactory.port", "465");

			InternetAddress[] address = {new InternetAddress("xxx@xxx")};

                 	MimeMessage msg = new MimeMessage(session);
                        msg.setFrom(address);
			msg.setRecipients(Message.RecipientType.TO, address);
			msg.setSubject("件名", "iso-2022-jp");
			msg.setSentDate(new Date());
			msg.setText("本文1" + System.getProperty("line.separator") +
　　　　　　　　 "本文2" + System.getProperty("line.separator"), "iso-2022-jp");

			Transport.send(msg);
		} catch (Exception e) {
			System.out.println(e);
		}
	}
}