public HttpResponseMessage Post(Email email)
        {
            EmailServices.PrepareEmail(email);
            string             message     = "Sorry, your mail was not sent. Mail service providers are unreachable at the moment. Please notify your network administrators.";
            int                pingTimeout = Int32.Parse(WebConfigurationManager.AppSettings["DefaultPingTimeout"]);
            List <EmailServer> servers     = new List <EmailServer>();

            servers.Add(new MailgunServer());
            servers.Add(new SendGridServer());
            foreach (EmailServer server in servers)
            {
                if (server.PingServer())
                {
                    message = server.SendMail(email);
                    break;
                }
            }
            var response = new HttpResponseMessage(HttpStatusCode.OK);

            response.Content = new StringContent(message, Encoding.UTF8);
            return(response);
        }