mailattachment code

 protected void LinkButton1_Click(object sender, EventArgs e)
    {
         MailMessage message = new MailMessage();
       


            message.To.Add(new MailAddress("ravivarma_07d@yahoo.com"));
           // message.From = new MailAddress("ravivarma_07d@yahoo.com");


            message.Subject = "Testing";
            message.Body = "we are sending test mail";
            message.BodyEncoding = System.Text.Encoding.UTF8;
            message.SubjectEncoding = System.Text.Encoding.UTF8;
            Attachment attach = new Attachment(FileUpload1.PostedFile.InputStream,FileUpload1.FileName);
            message.Attachments.Add(attach);

          
            message.Priority = MailPriority.Normal;

                string err = "";

                SmtpClient smtpClient1 = new System.Net.Mail.SmtpClient();

                try
                {
                    smtpClient1.Send(message);
                }

                catch (SmtpFailedRecipientException ex)
                {

                    err = ex.Message;
                }
                catch (SmtpException ex)
                {

                    err = ex.Message;
                }
       

    }