I am working on a site . In that there is an option for sending the mail .

But i got javax.mail.AuthenticationFailedException when i
send the mail.

But it works sometimes and it fails sometimes
automaticallly.

I am sure that there i sno problem in my mailing code.

I contacted the person which provide the webhosting service for the my wesite.

He said it is the problem from your side . I am in confusion . what is the problem .

I do not use any user id and password

My code is

import javax.mail.internet.*;

import javax.activation.*;

import java.util.Properties;

import sun.net.smtp.SmtpClient;



public class SendMailBean {


String smtpHost = "localhost";

String contenttype = "text/plain";

public String send(String p_from, String p_to, String
p_cc, String p_bcc, String p_subject, String p_message,
String p_smtpServer, String contenttype)

{

try

{


if(contenttype!=null)

{

this.contenttype = contenttype;

}




Properties prop = System.getProperties();

prop.put("mail.smtp.host",smtpHost);

Session ses = Session.getInstance(prop,null);

MimeMessage message = new MimeMessage(ses);

message.setFrom(new InternetAddress(p_from));

message.setRecipient(Message.RecipientType.TO,new
InternetAddress(p_to));

if(p_cc != null)

{

message.setRecipient(Message.RecipientType.CC,new
InternetAddress(p_cc));

}

if(p_bcc != null)

{

message.setRecipient(Message.RecipientType.BCC,new
InternetAddress(p_bcc));

}

message.setSubject(p_subject);

message.setContent(p_message,this.contenttype);

Transport.send(message);

return "success";

}

catch(Exception e)

{

return e.toString();

}


}

}