Sending mail Using JavaMail

To sending email using Mime Message, Message, Session, Transport, XXXException import from javax.mail package. Those classes contains below jars:

j2ee.jar or (mail.jar and activation.jar)

If using j2ee.jar , you may get error : NoClassDefFoundError.

Exception in thread "main" java.lang.NoClassDefFoundError: javax/mail/Address

So, we need import mail.jar and activation.jar files, then NoClassDefFoundError error resolve automatically.

Send an email message, an application prepares a MimeMessage object, then sends it with the static method send() on the Transport class in javax.mail package. The message is created using a JavaMail Session object. The Session and the Transport work with the Application Engine Mail service without any additional configuration to this method.

import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

//..

private static void sendMail(){

        Properties props = new Properties();

        String smtpHost = "smtp.corp.anthem.com";

                    props.put("mail.imaps.partialfetch", "false");

                    props.put("mail.smtp.host", smtpHost);

        Session session = Session.getInstance(props, null); or Session.getDefaultInstance(props, null);
        String msgBody = "...";

        try {
            Message msg = new MimeMessage(session);
            msg.setFrom(new InternetAddress("fromTeam@example.com", "XXX@XMail.com Admin"));
            msg.addRecipient(Message.RecipientType.TO,
                             new InternetAddress("enduser@example.com", "Mr. EndUser"));
            msg.setSubject("Your XXX  account has been activated");
            msg.setText(msgBody);
            Transport.send(msg);

        } catch (AddressException e) {
            // ...
        } catch (MessagingException e) {
            // ...
        }

}

if you want more information mail parameters, please visit below web page:
JavaMail