namespace Bank.Controller
{
    public class HomeController : Umbraco.Web.Mvc.SurfaceController
    {
        public ActionResult SendCalc(string mailto, string link)
        {
            Byte[] bytes = System.IO.File.ReadAllBytes(Path.Combine(HttpRuntime.AppDomainAppPath, "css/img/logo.png"));
            String logoBase64 = Convert.ToBase64String(bytes);

            string senderEmail = "[email protected]";

            string body = "";

            body += "</table>";

            if (IsValidEmail(mailto))
            {
                Helper.MailNotification.Send(mailto, "Låne beregning", body, false, senderEmail);
            }
            return Content("");
        }

I have this very simple SurfaceController, and everything works on localhost, but the problem is that when I publish the site and move it to the server it don't seem to work, I just get runtime error, because it can't find the http://myurl.dk/umbraco/surface/Home/SendCalc?mailto=t&link=hej

Anyone know how i can solve this?

Note: I remove some of the content inside the SendCalc()