I am new to java mail. I am getting an error.What could be the possible reasons for this error and what would be the possible solution.Thanks in advance. Error and code are given below:

ERROR:

"javax.mail.SendFailedException: Sending failed; nested exception is: javax.mail.SendFailedException: 554 : Recipient address rejected: Relay access denied"

JSP CODE :

<%@ pageimport=" javax.mail.*, javax.mail.internet.*, javax.activation.*,java.util.*"
%>

<%

try{

Properties props = new Properties();
Session sendMailSession;
Store store;
Transport transport;

sendMailSession = Session.getInstance(props, null);

props.put("mail.smtp.host", "XX.X.X.X");

Message newMessage = new MimeMessage(sendMailSession);

newMessage.setFrom(new InternetAddress(request.getParameter("from")));

newMessage.setRecipient(Message.RecipientType.TO, new InternetAddress(request.getParameter("to")));

newMessage.setSubject(request.getParameter("subject"));

newMessage.setSentDate(new Date());
newMessage.setText(request.getParameter("text"));

transport = sendMailSession.getTransport("smtp");
transport.send(newMessage);
%>

Your mail has been sent.

<%
}
catch(MessagingException m)
{
out.println(m.toString());
}
%>