public string ActivtionEmail(ulong User_ID, string UserEmail, string url, string type = "user")
        {
            string        Template = GetEmailTempalte();
            EncDec        key      = new EncDec();
            StringBuilder sb       = new StringBuilder();
            MailMessage   Message  = new MailMessage();

            Message.To.Add(UserEmail);
            Message.IsBodyHtml = true;
            Message.Subject    = "Account Activation";
            Message.Priority   = MailPriority.High;
            sb.Append("An account was set up on Apppointments365.com using your email address.<br/><br/>");
            sb.Append("<a href='http://" + url + "/account/Activate?id=" + key.enc(User_ID.ToString()) + "&type=" + type + "&email=" + key.enc(UserEmail.ToString()) + "'target='_blank'>http://" + url + "/account/Activate?id=" + key.enc(User_ID.ToString()) + "&type=" + type + "&email=" + key.enc(UserEmail.ToString()) + "</a>");
            sb.Append("<br/><br/>Email:" + UserEmail + "<br/>");
            Template     = Template.Replace("[subject]", "Account Activation");
            Template     = Template.Replace("[body]", sb.ToString());
            Message.Body = Template;
            SmtpClient client = new SmtpClient("smtp.gmail.com", 587);

            try
            {
                client.EnableSsl      = true;
                client.DeliveryMethod = SmtpDeliveryMethod.Network;
                client.Credentials    = new System.Net.NetworkCredential("*****@*****.**", "dssdproject");
                client.Send(Message);
                return(null);
            }
            catch (Exception exp)
            {
                return(exp.Message);
            }
        }