How do I send an email message?

To enable your application to send email you can use the JavaMail API, and prior to JDK 1.6 you will also need the JavaBeans Activation Framework. The JAF jar file should be included in your application classpath.

package org.kodejava.mail;

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;
import java.util.Properties;

public class SendingEmailDemo {
    public static void main(String[] args) {
        String from = "kodejava@gmail.com";
        String to = "kodejava@gmail.com";
        String subject = "Hi There...";
        String text = "How are you?";

        // A properties to store mail server smtp information such as the host
        // name and the port number. With these properties we create a Session
        // object from which we'll create the Message object.
        Properties properties = new Properties();
        properties.put("mail.smtp.host", "smtp.gmail.com");
        properties.put("mail.transport.protocol", "smtp");
        properties.put("mail.smtp.starttls.enable", "true");
        properties.put("mail.smtp.port", "587");
        properties.put("mail.debug", "true");
        properties.put("mail.smtp.ssl.protocols", "TLSv1.2");
        Session session = Session.getDefaultInstance(properties, null);

        try {
            // Message is a mail msg to be sent through the Transport object.
            // In the Message object we set the sender address and the
            // recipient address. Both of this address is a type of
            // InternetAddress. For the recipient address we can also set the
            // type of recipient, the value can be TO, CC or BCC. In the next
            // two lines we set the email subject and the content text.
            Message msg = new MimeMessage(session);
            msg.setFrom(new InternetAddress(from));
            msg.setRecipient(Message.RecipientType.TO, new InternetAddress(to));
            msg.setSubject(subject);
            msg.setText(text);

            // Send the msg to the recipient.
            Transport.send(msg, "kodejava", "password");
        } catch (MessagingException e) {
            e.printStackTrace();
        }
    }
}

Maven Dependencies

<dependencies>
    <dependency>
        <groupId>javax.mail</groupId>
        <artifactId>javax.mail-api</artifactId>
        <version>1.5.6</version>
    </dependency>
    <dependency>
        <groupId>javax.mail</groupId>
        <artifactId>mail</artifactId>
        <version>1.4.7</version>
    </dependency>
</dependencies>

Author
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Wayan

Founder at Kode Java Org

A programmer, runner and recreational diver, lives on the island of Bali, Indonesia. Programming in Java, Spring, Hibernate / JPA. You can support me working on this project, buy me a cup of coffee ☕, every little bit helps. Thank you 🙏

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