Hello All,
Base on the following article:
How to automatically send the same Generated PDF to Email on Button Click?
 
        public void SendHTMLMail()
        {
            MailMessage Msg = new MailMessage();
            MailAddress fromMail = new MailAddress("Email");
            // Sender e-mail address.
            Msg.From = fromMail;
            // Recipient e-mail address.
            Msg.To.Add(new MailAddress("Email"));
            // Subject of e-mail
            Msg.Subject = "Kyst - Kart";
            Msg.Body += "Please check below data <br/><br/>";
            Msg.Body += "Best Exported PDF Attachment";
            Msg.IsBodyHtml = true;
            string sSmtpServer = "";
            sSmtpServer = "mail.server";
            SmtpClient a = new SmtpClient();
            a.Host = sSmtpServer;
            a.EnableSsl = false;
            a.Send(Msg);
        }
Best regards