javamail

Outgoing Mail (SMTP) Server

requires TLS or SSL: smtp.gmail.com (use authentication)

Use Authentication: Yes

Port for TLS/STARTTLS: 587

Port for SSL: 465

GMail SMTP detail here – http://mail.google.com/support/bin/answer.py?hl=en&answer=13287

1. JavaMail – GMail via TLS

Send an Email via Gmail SMTP server using TLS connection.

package com.mkyong.common;

 

import java.util.Properties;

import javax.mail.Message;

import javax.mail.MessagingException;

import javax.mail.Session;

import javax.mail.Transport;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;

 

public class SendMailTLS {

 

	public static void main(String[] args) {

		String host = "smtp.gmail.com";

		int port = 587;

		String username = "username";

		String password = "password";

 

		Properties props = new Properties();

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

		props.put("mail.smtp.starttls.enable", "true");

 

		Session session = Session.getInstance(props);

 

		try {

 

			Message message = new MimeMessage(session);

			message.setFrom(new InternetAddress("[email protected]"));

			message.setRecipients(Message.RecipientType.TO,

				InternetAddress.parse("[email protected]"));

			message.setSubject("Testing Subject");

			message.setText("Dear Mail Crawler," +

					"\n\n No spam to my email, please!");

 

			Transport transport = session.getTransport("smtp");

			transport.connect(host, port, username, password);

 

			Transport.send(message);

 

			System.out.println("Done");

 

		} catch (MessagingException e) {

			throw new RuntimeException(e);

		}

	}

}

2. JavaMail – GMail via SSL

Send an Email via Gmail SMTP server using SSL connection.

package com.mkyong.common;

 

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 SendMailSSL {

	public static void main(String[] args) {

		Properties props = new Properties();

		props.put("mail.smtp.host", "smtp.gmail.com");

		props.put("mail.smtp.socketFactory.port", "465");

		props.put("mail.smtp.socketFactory.class",

				"javax.net.ssl.SSLSocketFactory");

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

		props.put("mail.smtp.port", "465");

 

		Session session = Session.getDefaultInstance(props,

			new javax.mail.Authenticator() {

				protected PasswordAuthentication getPasswordAuthentication() {

					return new PasswordAuthentication("username","password");

				}

			});

 

		try {

 

			Message message = new MimeMessage(session);

			message.setFrom(new InternetAddress("[email protected]"));

			message.setRecipients(Message.RecipientType.TO,

					InternetAddress.parse("[email protected]"));

			message.setSubject("Testing Subject");

			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);

		}

	}

}