Sending Email in java through MS Exchange Server

[Eduardo Ponce de Leon]

Can somebody walk me to an API on how to send an email using my exchange server properties. I need to send multiple files to multiple recipients with a body message that does not change, so If i can develop a small app for this, it would be really helpful.
Thanks

[Paul Clapham]

JavaMail is that API. The download includes simple examples of sending e-mail as well as receiving e-mail.

[Eduardo Ponce de Leon]

Paul,
Ive downloaded it but not able to send, this is the example i am using from the file I downloaded...

public class sendfile {

    public static void main(String[] args) {


		String to = "[e-mail]";
		String from = "[e-mail]";
		String host = "10.18.212.11";
		String filename = "C:\\Documents and Settings\\eponcede\\Desktop\\controller.java";
		boolean debug = Boolean.valueOf(false).booleanValue();
		String msgText1 = "Sending a file.\n";
		String subject = "Sending a file";
	
	// create some properties and get the default Session
	Properties props = System.getProperties();
	props.put("mail.smtp.host", host);
	
	Session session = Session.getInstance(props, null);
	session.setDebug(debug);
	
	try {
	    // create a message
	    MimeMessage msg = new MimeMessage(session);
	    msg.setFrom(new InternetAddress(from));
	    InternetAddress[] address = {new InternetAddress(to)};
	    msg.setRecipients(Message.RecipientType.TO, address);
	    msg.setSubject(subject);

	    // create and fill the first message part
	    MimeBodyPart mbp1 = new MimeBodyPart();
	    mbp1.setText(msgText1);

	    // create the second message part
	    MimeBodyPart mbp2 = new MimeBodyPart();

	    // attach the file to the message
	    mbp2.attachFile(filename);

	    // create the Multipart and add its parts to it
	    Multipart mp = new MimeMultipart();
	    mp.addBodyPart(mbp1);
	    mp.addBodyPart(mbp2);

	    // add the Multipart to the message
	    msg.setContent(mp);

	    // set the Date: header
	    msg.setSentDate(new Date());

	    // send the message
	    Transport.send(msg);
	    
	} catch (MessagingException mex) {
	    mex.printStackTrace();
	    Exception ex = null;
	    if ((ex = mex.getNextException()) != null) {
		ex.printStackTrace();
	    }
	} catch (IOException ioex) {
	    ioex.printStackTrace();
	}
    }
}

and this is the error I am getting..

javax.mail.SendFailedException: Invalid Addresses;
  nested exception is:
	com.sun.mail.smtp.SMTPAddressFailedException: 550 5.7.1 Unable to relay for [e-mail]

	at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1835)
	at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1098)
	at javax.mail.Transport.send0(Transport.java:195)
	at javax.mail.Transport.send(Transport.java:124)
	at sendmail.test1.main(test1.java:82)
Caused by: com.sun.mail.smtp.SMTPAddressFailedException: 550 5.7.1 Unable to relay for [e-mail]

	at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1686)
	... 4 more
com.sun.mail.smtp.SMTPAddressFailedException: 550 5.7.1 Unable to relay for [e-mail]

	at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1686)
	at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1098)
	at javax.mail.Transport.send0(Transport.java:195)
	at javax.mail.Transport.send(Transport.java:124)
	at sendmail.test1.main(test1.java:82)

If it is exchanage server, how can I authenticate?
thanks..

[Paul Clapham]

Isn't that in the JavaMail FAQ? Anyway if you don't find the answer in the FAQ, the way to find out about authenticating to that server is to talk to its administrator.

[Rob Spoor]

I don't think authentication is the problem. If you check the stack trace you will see this:

550 5.7.1 Unable to relay for [e-mail]

That means that the server you're not allowed to send emails to the domain. You need to change the relaying settings of the mail server.

PS: Eduardo, next time also remove the real email addresses from your stack trace I've done that for you.

[Paul Clapham]

Rob Spoor wrote:I don't think authentication is the problem.

It might be or it might not be. It's possible the server is configured to let authorized users relay. The only way to find out is to ask the server's administrator, as I already suggested. I can see it's a server within the same LAN from its IP address, and it's a fairly large LAN too, so probably you (Eduardo) are in an environment where running a mail server is a serious business. So you should seriously talk to the server administrator; if you make a mess and get your company's server on a spam black-list, it's much better if you had permission from the administrator before doing that.