smtp.host error

i got some error msg

error - javax.mail.MessagingException: Unknown SMTP host: smtp.gmail.com; nested exception is: java.net.UnknownHostException: smtp.gmail.com

codeProperties props =new Properties();

props.put("mail.smtp.host","smtp.gmail.com");

props.put("mail.smtp.port","465");

props.put("mail.user","dineshjweerakkody");

Session mailSession = Session.getDefaultInstance(props,null);

MimeMessage msg =new MimeMessage(mailSession);

msg.setFrom(newInternetAddress(request.getParameter("mymail"),request.getParameter("myname")));

msg.addRecipient(Message.RecipientType.TO,new InternetAddress(request.getParameter("resmail"),request.getParameter("resname")));

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

msg.setText(request.getParameter("message"));

Transport.send(msg);

response.sendRedirect("success.jsp");

Please help me...............

[1430 byte] By [DAANa] at [2007-11-27 1:18:48]
# 1
See the JavaMail FAQ for tips on debugging connection problems.
bshannona at 2007-7-11 23:54:49 > top of Java-index,Enterprise & Remote Computing,Enterprise Technologies...