JavaMail Send Attachment, The JavaMail API is the concept related to email through the JavaMail. There are so many ways to send an email using JavaMail, but here by using SMTP server should send the emails.JavaMail API also provides core classes for to define objects and used that objects to maintain a mail system. By making use of MineBodyPart, BodyPart classes from JavaMail API sending electronic mail with attachment is possible. The sending email with attachment is similar to sending email but here the additional functionality is with message sending a file or document by making use of MineBodyPart, BodyPart classes.

Steps to send email with attachments:
JavaMail Send Attachment, The process for sending mail with attachment involves session object, MineBody, MultiPart objects. Here the MineBody is used to set the text message and it is carried by MultiPart object. Because of MultiPart object here sending attachment.

Let us see the example how to send email with attachments.

 package firstmail;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
public class sendingattachments {
   public static void main(String[] args) {
      // Recipient's email ID needs to be mentioned.
      String to = "9saireddy@gmail.com";
      // Sender's email ID needs to be mentioned
      String from = "9saireddy@gmail.com";
      final String username = "9saireddy@gmail.com";//change accordingly
      final String password = "splessons";//change accordingly
      // Assuming you are sending email through relay.jangosmtp.net
      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");
      // Get the Session object.
      Session session = Session.getInstance(props,
         new javax.mail.Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
               return new PasswordAuthentication(username, password);
            }
         });
      try {
         // Create a default MimeMessage object.
         Message message = new MimeMessage(session);
         // Set From: header field of the header.
         message.setFrom(new InternetAddress(from));
         // Set To: header field of the header.
         message.setRecipients(Message.RecipientType.TO,
            InternetAddress.parse(to));
         // Set Subject: header field
         message.setSubject("sendinngattachments.java");
         // Create the message part
         BodyPart messageBodyPart = new MimeBodyPart();
         // Now set the actual message
         messageBodyPart.setText("hey u, follwong is the message find it.");
         // Create a multipar message
         Multipart multipart = new MimeMultipart();
         // Set text message part
         multipart.addBodyPart(messageBodyPart);
         // Part two is attachment
         messageBodyPart = new MimeBodyPart();
         String filename = "E:/SaiReddy-CV.PDF";
         DataSource source = new FileDataSource(filename);
         messageBodyPart.setDataHandler(new DataHandler(source));
         messageBodyPart.setFileName(filename);
         multipart.addBodyPart(messageBodyPart);
         // Send the complete message parts
         message.setContent(multipart);
         // Send message
         Transport.send(message);
         System.out.println("Sent message successfully....");
      } catch (MessagingException e) {
         throw new RuntimeException(e);
      }
   }
}

Output
When compile the program following is the output will be displayed in the console.

Sent message successfully....

Now check the mail.

Open the mail and find the attachment.

• JavaMail Send Attachment – By making use of MineBodyPart, BodyPart classes from JavaMail API sending electronic mail with attachment is possible.
• JavaMail Send Attachment – The process for sending mail with attachment involves session object, MineBody, MultiPart objects.
• JavaMail Send Attachment – Here the MineBody is used to set the text message and it is carried by MultiPart object.