umbraco contact form part 2

ContactController.cs

using System.Configuration;
using System.Net.Configuration;
using System.Net.Mail;
using System.Text;
using System.Web.Mvc;
using Umbraco.Web.Mvc;
using MailChimp;
using MailChimp.Lists;

namespace ContactForm.Controllers
{
    public class ContactController : SurfaceController
    {
        [ChildActionOnly]
        public ActionResult ContactForm()
        {
            // In case you need it...
            var currentNode = Umbraco.TypedContent(UmbracoContext.PageId.GetValueOrDefault());

            var model = new Models.ContactModel();
            //return View("umbContactUs", model);
            return CurrentUmbracoPage();
        }

        /// <summary>
        /// this method sends an email using web.config settings
        /// </summary>
        /// <param name="subject"></param>
        /// <param name="body"></param>
        private void SendEmail(string subject, string body)
        {
            //web.config
            //<network host="smtp.gmail.com" enableSsl="true" port="587" userName="you@gmail.com" password="" />
            //may need to activate less secure apps: https://www.google.com/settings/security/lesssecureapps

            //get data from web.config
            var smtpSection = (SmtpSection)ConfigurationManager.GetSection("system.net/mailSettings/smtp");
            string userName = smtpSection.Network.UserName;
            string password = smtpSection.Network.Password;
            string host = smtpSection.Network.Host;
            bool ssl = smtpSection.Network.EnableSsl;
            int port = smtpSection.Network.Port;

            MailMessage message = new MailMessage();
            //enforce to and from
            message.From = new MailAddress(userName);
            message.To.Add(new MailAddress(userName));

            //message.Sender = new MailAddress(userName);
            message.Body = body;
            message.Subject = subject;
            message.IsBodyHtml = true;

            //send email
            SmtpClient smtp = new SmtpClient(host, port);
            smtp.Credentials = new System.Net.NetworkCredential(userName, password);
            //smtp.UseDefaultCredentials = true;
            smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
            smtp.EnableSsl = ssl;

            smtp.Send(message);
        }

        [HttpPost]
        public ActionResult ContactForm(Models.ContactModel model)
        {
            //Check if the dat posted is valid (All required's & email set in email field)
            if (!ModelState.IsValid)
            {
                //Not valid - so lets return the user back to the view with the data they entered still prepopulated                
                return CurrentUmbracoPage();
            }
            try
            {
                //compose email
                var sb = new StringBuilder();
                sb.AppendFormat("<p>Fist Name: {0}</p>", model.FistName);
                sb.AppendFormat("<p>Last Name: {0}</p>", model.LastName);
                sb.AppendFormat("<p>Company: {0}</p>", model.Company);
                sb.AppendFormat("<p>Position: {0}</p>", model.Position);
                sb.AppendFormat("<p>Telephone: {0}</p>", model.Telephone);
                sb.AppendFormat("<p>Email: {0}</p>", model.Email);
                sb.AppendFormat("<p>Enquire: {0}</p>", model.Enquire);

                //send email
                SendEmail("Contact Form (" + umbraco.library.NiceUrlWithDomain(CurrentPage.Id) + ")", sb.ToString());

            }
            catch (SmtpException smtpEx)
            {
                ModelState.AddModelError("Error", smtpEx.Message);
                return CurrentUmbracoPage();
            }
            catch (System.Exception ex)
            {
                ModelState.AddModelError("Error", ex.Message);
                return CurrentUmbracoPage();
            }

            ViewBag.Message = model.SuccessMessage;
            return CurrentUmbracoPage();
        }
    }
}