How do i authentication so that i can send a email through jsp a page

[dreamer14]

<%@ page import="java.lang.,java.util.,javax.mail.,javax.mail.internet.,
javax.activation.*" %>
<%
String p_to = "[e-mail]"; // Please fill in your email here
String p_from = "[e-mail]"; // Please fill in receipient’s email here
String p_subject = "Testing";
String p_message = "This is a test email";
String l_host = "smtp.mail.yahoo.com.sg";
// Gets the System properties
Properties l_props = new Properties();
// Puts the SMTP server name to properties object
l_props.put("mail.smtp.host", l_host);
l_props.put("mail.smtp.port","25");
l_props.put("mail.transport.protocol","smtp");
l_props.put("mail.smtp.auth", "true");
l_props.put("mail.user", "ancde"); 
l_props.put("mail.password","password"); 
// Get the default Session using Properties Object
Session l_session = Session.getInstance(l_props, null);
l_session.setDebug(false); // Enable the debug mode
try {
MimeMessage l_msg = new MimeMessage(l_session); // Create a New message
l_msg.setFrom(new InternetAddress(p_from)); // Set the From address
l_msg.setRecipients( Message.RecipientType.TO
, InternetAddress.parse(p_to, false));
l_msg.setSubject(p_subject); // Sets the Subject
// Create and fill the first message part
MimeBodyPart l_mbp = new MimeBodyPart();
l_mbp.setText(p_message);
// Create the Multipart and its parts to it
Multipart l_mp = new MimeMultipart();
l_mp.addBodyPart(l_mbp);
// Add the Multipart to the message
l_msg.setContent(l_mp);
// Set the Date: header
l_msg.setSentDate(new Date());
// Send the message
Transport.send(l_msg);
// If program reaches this point, then message is successfully sent.
out.print("Success");
} catch (MessagingException mex) { // Trap the MessagingException Error
out.print("Failure: Messaging Exception: " + mex);
} catch (Exception e) {
out.print("Failure: General Exception: " + e);
e.printStackTrace();
}
%>

i get this error message
Failure: Messaging Exception: javax.mail.AuthenticationFailedException
How do i solve this?
All help will be greatly appreciated thanks

[peter_budo]

1. You do not want to do this sort of thing in JSP which is for view, you need to do it in an object or method called by servlet
2. You need to do some reading may be this can help
3. You need to find out how Yahoo enable 3rd parties to use their email services

[dreamer14]

Oh i see thanks for the help.
Do you have any idea how yahoo will allow that?

[peter_budo]

Nope, but if you search forum there been already few attempts so maybe some of them got it right, otherwise you need check Yahoo resources