ASP.NET

string filename = "Chadwick2007.pdf";//"cab2.txt";//
Response.AddHeader("Content-Disposition", "attachment; filename=" + filename);
Response.ContentType = "application/octet-stream";
FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://127.0.0.1/ftpfolder/" + filename);
request.Method = WebRequestMethods.Ftp.DownloadFile;
request.UseBinary = true;
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
Stream responseStream = response.GetResponseStream();
StreamReader sr = new StreamReader(responseStream);
int i;
while ((i = responseStream.ReadByte()) != -1)
{
    Response.OutputStream.WriteByte(Convert.ToByte(i));
}

string MailTo = "aa@aa.com";
        string Host = "abc.com";
        string From = "xyz.com";
        string Pwd = "12345";
        bool Flag = false;
        MailMessage Message = new MailMessage();
        //Message.
        Message.To.Add(MailTo);
        Message.From = new MailAddress(From);
        Message.Subject = Subject;
        Message.IsBodyHtml = true;
        Message.SubjectEncoding = System.Text.Encoding.UTF8;
        Message.Body = Msg;
        Message.Priority = MailPriority.High;