private async Task configSendGridasync(IdentityMessage message)
        {
            var myMessage = new SendGridMessage();
            myMessage.AddTo(message.Destination);
            myMessage.From = new System.Net.Mail.MailAddress("Royce@contoso.com", "Royce Sellars (Contoso Admin)");
            myMessage.Subject = message.Subject;
            myMessage.Text = message.Body;
            myMessage.Html = message.Body;
            var credentials = new NetworkCredential(
            ConfigurationManager.AppSettings["emailServiceUserName"],
            ConfigurationManager.AppSettings["emailServicePassword"]
            );
            // Create a Web transport for sending email.
            var transportWeb = new Web(credentials);
            // Send the email.
            if (transportWeb != null)
            {
                await transportWeb.DeliverAsync(myMessage);
            }
            else
            {
                Trace.TraceError("Failed to create Web transport.");
                await Task.FromResult(0);
            }
        }
    }