next → ← prev

Sending Email in Java through Gmail Server

We can send email by using the SMTP server of gmail. It is good if you are don't have any SMTP server and reliable. Here we will learn how to send email through gmail server by SSL (Secured Socket Layer). SSL is basically used for security if you are sending email through gmail server.

For better understanding of this example, learn the steps of sending email using JavaMail API first.

For sending the email using JavaMail API, you need to load the two jar files:

mail.jar
activation.jar

download these jar files (or) go to the Oracle site to download the latest version.

Disable the antivirus e.g. avast etc. because it may interrupt your code to send emails.

Example of Sending Email through Gmail Server with SSL

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

public class SendMailSSL {
 public static void main(String[] args) {

 String to="sonoojaiswal1987@gmail.com";//change accordingly

  //Get the session object
  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("yourgmailid@gmail.com","password");//change accordingly
   }
  });
 
  //compose message
  try {
   MimeMessage message = new MimeMessage(session);
   message.setFrom(new InternetAddress("yourgmailid@gmail.com"));//change accordingly
   message.addRecipient(Message.RecipientType.TO,new InternetAddress(to));
   message.setSubject("Hello");
   message.setText("Testing.......");
   
   //send message
   Transport.send(message);

   System.out.println("message sent successfully");
 
  } catch (MessagingException e) {throw new RuntimeException(e);}
 
 }
}

download this example to send email

As you can see in the above example, userid and password need to be authenticated. As, this program illustrates, you can send email easily but change the username and password accordingly. Let's see how to run it once again by simple technique:

Load the jar file	c:\> set classpath=mail.jar;activation.jar;.;
compile the source file	c:\> javac SendMailSSL.java
run by	c:\> java SendMailSSL

Resolving AuthenticationFailedException

Click on this link and click on turn on radio button to allow users to send mail from unknown location. https://www.google.com/settings/security/lesssecureapps

Next TopicExample Of Receiving Email Using Java Mail Api

← prev next →

Java Mail Tutorial

Sending Email in Java through Gmail Server

Example of Sending Email through Gmail Server with SSL

Resolving AuthenticationFailedException