Sending mail through Exchange Server

[mark babcock]

I need to be able to connect to exchange and send mail. How can I do this? Am I forced to revert to VB MAPI?
String to = "[email protected]";
String from = "[email protected]";
String host = ExchangeServer;
boolean debug = false;
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);
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
FileDataSource fds = new FileDataSource(filename);
mbp2.setDataHandler(new DataHandler(fds));
mbp2.setFileName(fds.getName());
// create the Multipart and 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());
Transport.send(msg);
} catch (MessagingException mex) {
mex.printStackTrace();
Exception ex = null;
if ((ex = mex.getNextException()) != null) {
ex.printStackTrace();
}
}


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

[Gregg Bolinger]

I noticed that in your props object, you are using "mail.smtp.host". I am assuming you took this from the examples. You need to replace that with the IP or DNS Host name of your Exchange Server.
I send mail through an Exchange Server all the time where I work with the JavaMail API. However, something else you might take note of, where I work, everything leaving through the server must match a specific Domain Name. For example, my FROM Address will always have to have "@intrustbank.com". I noted also that you were sending mail FROM a Hotmail Domain. Your Exchange Server could be blocking this outgoing domain. This keeps people from spamming through your server.