JavaMail API Sending Your First Message

JavaMail API Sending Your First Message

Tasks

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Starting with the skeleton code, get the system Properties.

Add the name of your SMTP server to the properties for the mail.smtp.host key.

Get a Session object based on the Properties.

Create a MimeMessage from the session.

Set the from field of the message.

Set the to field of the message.

Set the subject of the message.

Set the content of the message.

Use a Transport to send the message.

Compile and run the program, passing your SMTP server, from address, and to address on the command line.

Check to make sure you received the message with your normal mail reader (Eudora, Outlook Express, pine, ...).

import java.util.Properties;

import javax.mail.*;

import javax.mail.internet.*;

public class MailExample {

public static void main (String args[]) throws Exception {

String host = args[0];

String from = args[1];

String to = args[2];

// Get system properties

Properties props = System.getProperties();

// Setup mail server

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

// Get session

Session session = Session.getDefaultInstance(props, null);

// Define message

MimeMessage message = new MimeMessage(session);

// Set the from address

message.setFrom(new InternetAddress(from));

// Set the to address

message.addRecipient(Message.RecipientType.TO,

new InternetAddress(to));

// Set the subject

message.setSubject("Hello JavaMail");

// Set the content

message.setText("Welcome to JavaMail");

// Send message

Transport.send(message);

}

}

Demonstration

After executing the following command (replacing the email addresses and specifying your SMTP server):

java MailExample SMTP.Server from@address to@address

your program will send a mail message.

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