Exception while sending Mail

Question

Hi I am getting javax.mail.sendFailedException: InvalidAddreses
nested exception is class com.sun.mail.smtp.SMTPAddressFailedException:553 sorry that domain isn't in my list of allowed rcpthosts<#5.7.1>
Here my Program:
package com.fortune2win.mail;
import java.util.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
// Send a simple, single part, text/plain e-mail
public class SendMail {
public void sendMail(String TO,String secCode, String UserNumber){
                                                                      // SUBSTITUTE YOUR EMAIL ADDRESSES HERE!!!
String from = "[email protected]";
                                                                      // SUBSTITUTE YOUR ISP'S MAIL SERVER HERE!!!
String host = "207.234.145.236";
                                                                      // Create properties, get Session
Properties props = new Properties();
          props.put("mail.transport.protocol","smtp");
                                                                      // If using static Transport.send(),
                                                                      // need to specify which host to send it to
props.put("mail.smtp.host", host);
                                                                           // To see what is going on behind the scene
props.put("mail.debug", "true");
Session session = Session.getDefaultInstance(props);
try {
                                                                           // Instantiatee a message
Message msg = new MimeMessage(session);
                                                                           //Set message attributes
InternetAddress addressFrom = new InternetAddress(from);
          msg.setFrom(addressFrom);
               InternetAddress[] address = {new InternetAddress(TO)};
               msg.setRecipients(Message.RecipientType.TO,address);
msg.setSubject("F2W Player's Intimation");
                                                                           // Set message content
msg.setText("Thank You for playing F2W online game.\n \n"+
"CONGRATULATIONS\n \n "+
"Your Number:" UserNumber""+"is a valid entry. \n"+
"Your Security Code:"+""+secCode+""+"\n" +
"You are entitled to claim the prize only if you produce a print of this mail."+
"\n Click www.fortune2win.com/home_index.jsp for prizedetails.\n");
                                                                           //Send the message
Transport.send(msg);
catch (MessagingException mex) {
                                                                           // Prints all nested (chained) exceptions as well
mex.printStackTrace();
                                                                                //End of class
Plz it urgent...Help me

Answer 1

Hi thanks for the reply.
But the TO addreass I specified in the argumentlist. that is outside the program.
But the mails are going to with in the same host that is under given host address(XXX.XXX.XXX.XXX) .
Wht I mean is..mails are going with in my company...but outside mails are not going...like yahoo/gmail..etc..
plz help .
TO address i am taking from Form textbox
Regards
Varma