how to send email through outlook from java

Question

hi, i have using the following code for sending mail within a domain.

public void sendMail(String mailServer, String from, String to,
            String subject, String messageBody, String[] attachments)
            throws MessagingException, AddressException {
        // Setup mail server
        Properties props = System.getProperties();
        props.put("mail.smtp.host", mailServer);

        // Get a mail session
        Session session = Session.getDefaultInstance(props, null);

        // Define a new mail message
        Message message = new MimeMessage(session);
        message.setFrom(new InternetAddress(from));
        message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
        message.setSubject(subject);

        // Create a message part to represent the body text
        BodyPart messageBodyPart = new MimeBodyPart();
        messageBodyPart.setText(messageBody);

        // use a MimeMultipart as we need to handle the file attachments
        Multipart multipart = new MimeMultipart();

        // add the message body to the mime message
        multipart.addBodyPart(messageBodyPart);

        // add any file attachments to the message
        addAtachments(attachments, multipart);

        // Put all message parts in the message
        message.setContent(multipart);

        // Send the message
        Transport.send(message);
        System.err.println("Message Send");

    }

    protected void addAtachments(String[] attachments, Multipart multipart)
            throws MessagingException, AddressException {
        for (int i = 0; i < attachments.length ; i++) {
            String filename = attachments[i];
            MimeBodyPart attachmentBodyPart = new MimeBodyPart();

            // use a JAF FileDataSource as it does MIME type detection
            DataSource source = new FileDataSource(filename);
            attachmentBodyPart.setDataHandler(new DataHandler(source));

            // assume that the filename you want to send is the same as the
            // actual file name - could alter this to remove the file path
            attachmentBodyPart.setFileName(filename);

            // add the attachment
            multipart.addBodyPart(attachmentBodyPart);
        }
    }

but if with the same code i try to send an email outside the domain, say i am sending email from [email protected] to mhsharma@gmail,com then it fails and gives me the following error. 550 5.7.1 Rcpt command failed: Mail denied due to site's policy

Am i missing something in the above code. Please help me

Answer 1

I suspect that's not a problem in your code, but in your mail server (sendmail?) configuration. I would talk to whoever administers your mail infrastructure.

Answer 2

It's likely that your local mail server requires you to authenticate before sending mail out into the world. This is a common policy to prevent spammers from relaying their mail through it.