Java send mail - how to use "Send via" - email

Question

We are sending mails from our local system.
We got our IPs white listed.
We have a scenario where we have to send email on behalf of somebody.
for ex: our email id is: support#mycompany.com
but we need to send email with a from address: john#abc.com
When we send with different from address, the receiving mail client displays "phishing" error.
One of the solution is to use "via" as dispayed in google link
https://mail.google.com/support/bin/answer.py?hl=en&ctx=mail&answer=185812
We also want the message to be displayed like this in receivers inbox.
Any pointers in this will help us a lot.
thanks in advance.
Note: We are using localhost as the smtp.

Answer 1

Read about email headers. you can add email headers while creating the mail message at runtime.
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);
}
for further reading check this :
http://www.javacommerce.com/displaypage.jsp?name=javamail.sql&id=18274
http://javamail.kenai.com/nonav/javadocs/javax/mail/internet/package-summary.html
#http://javamail.kenai.com/nonav/javadocs/javax/mail/internet/MimeMessage.html
You can create aliases for the smtp server too.