Sending Email From Your Application Using Java Mail


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By Sudhir Ancha

Now a Day's informing the Clients about the successful updation of data or sending other automated information form your Java Programs, either from your Servlets or from your Applications has become a requirement, more than a feature. Here we show how to use the Java Mail API to send a Mail. To Test Program all you need to have is a SMTP address (Which your ISP Provides).

Before Using this Program, you need to have Javasoft's JavaMail class files which can be downloaded from here http://www.javasoft.com/products/javamail/index.html

You will also need the JavaBeans^TM Activation Framework extension or JAF (javax.activation). It is available at http://www.javasoft.com/beans/glasgow/jaf.html.

import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;

public void postMail( String recipients[ ], String subject, String message , String from) throws MessagingException
{
    boolean debug = false;

     //Set the host smtp address
     Properties props = new Properties();
     props.put("mail.smtp.host", "smtp.jcom.net");

    // create some properties and get the default Session
    Session session = Session.getDefaultInstance(props, null);
    session.setDebug(debug);

    // create a message
    Message msg = new MimeMessage(session);

    // set the from and to address
    InternetAddress addressFrom = new InternetAddress(from);
    msg.setFrom(addressFrom);

    InternetAddress[] addressTo = new InternetAddress[recipients.length];
    for (int i = 0; i < recipients.length; i++)
    {
        addressTo[i] = new InternetAddress(recipients[i]);
    }
    msg.setRecipients(Message.RecipientType.TO, addressTo);

// Optional : You can also set your custom headers in the Email if you Want
msg.addHeader("MyHeaderName", "myHeaderValue");

    // Setting the Subject and Content Type
    msg.setSubject(subject);
    msg.setContent(message, "text/plain");
    Transport.send(msg);
}

To Send a Email, from your Program, just call the above method, With the following parameters,

String to -- Email Address of the Recipient

String subject -- Email Subject

String message -- Content or Body of the Message

String from -- Your (Senders) Email Address

smtp.jcom.net -- Replace this with your ISP's SMTP address.

That's it, you are all set to send a Email.

If your SMTP Server need you to do Authentication using Username and Password before Sending out mail, download the complete code from here SendMailUsingAuthentication.java

Home : Articles : Sending Email Using JavaMail

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