Source Code : Sending a simple text

Sending a simple text

// Common variablesString host = "your_smtp_server";String from = "from_address";String to = "to_address"; // Set propertiesProperties props = new Properties();props.put("mail.smtp.host", host);props.put("mail.debug", "true"); // Get sessionSession session = Session.getInstance(props); try { // Instantiate a message Message msg = new MimeMessage(session);  // Set the FROM message msg.setFrom(new InternetAddress(from));  // The recipients can be more than one so we use an array but you can // use 'new InternetAddress(to)' for only one address. InternetAddress[] address = {new InternetAddress(to)}; msg.setRecipients(Message.RecipientType.TO, address);  // Set the message subject and date we sent it. msg.setSubject("Email from JavaMail test"); msg.setSentDate(new Date());  // Set message content msg.setText("This is the text for this simple demo using JavaMail.");  // Send the message Transport.send(msg);}catch (MessagingException mex) { mex.printStackTrace();}
One can use the following to set the content of the message and declare its Mime type instead of setting only the text:

1 msg.setContent("This is the text for this simple demo using JavaMail.", "text/plain");
Multipart Messages

Sending messages that contain for example, HTML and rich text. Message composed of different parts.

123456789101112131415161718 ...// Here create two parts and set as message contect// Create and fill first partMimeBodyPart part1 = new MimeBodyPart();part1.setText("This is part one of this multipart message."); // Create and fill second partMimeBodyPart part2 = new MimeBodyPart();part2.setText("This is part two of this multipart message."); // Create the Multipart.Multipart mp = new MimeMultipart();mp.addBodyPart(part1);mp.addBodyPart(part2); // Set the message's contentmsg.setContent(mp);...
Sending Attachments

123456789101112131415 ...// Create a new part for the attached fileMimeBodyPart part3 = new MimeBodyPart(); // Put a file in the second partFileDataSource fds = new FileDataSource("THE_FILE_NAME");part3.setDataHandler(new DataHandler(fds));part3.setFileName(fds.getName()); // 'mp' is the previously created 'MimeMultipart' objectmp.addBodyPart(part3); // 'msg' is the previously created 'Message' objectmsg.setContent(mp);...
HTML message

1234 ...MimeBodyPart htmlPart = new MimeBodyPart();htmlPart.setContent("

Sample

This is a sample HTML part

", "text/html");...
Including Images in the HTML message

123456789101112131415 ...// Create and fill html partMimeBodyPart htmlPart = new MimeBodyPart();htmlPart.setContent("

Sample

This is a sample HTML part with an attached image

" +  "", "text/html"); // Create a new part for the attached image and set the CID image identifierMimeBodyPart imagePart = new MimeBodyPart();FileDataSource fds = new FileDataSource("THE_IMAGE_FILE_NAME");imagePart.setDataHandler(new DataHandler(fds));imagePart.setHeader("Content-ID", "some_image_id"); mp.addBodyPart(htmlPart);mp.addBodyPart(imagePart);...