Gimped sample of sending an email with fubu

SendEmailBehavior.cs

public class SendEmailNowBehavior<TResponse> : IActionBehavior 
        where TResponse : RenderEmailBase
    {
        private readonly IOutputWriter _outputWriter;
        private readonly IFubuRequest _fubuRequest;
        private readonly IMailer _mailer;

        public SendEmailNowBehavior(IOutputWriter outputWriter, IFubuRequest fubuRequest, IMailer mailer)
        {
            _outputWriter = outputWriter;
            _fubuRequest = fubuRequest;
            _mailer = mailer;
        }

        public IActionBehavior InsideBehavior { get; set; }

        public void Invoke()
        {
            if(InsideBehavior == null)
                throw new InvalidOperationException("To send the email there must be an output behavior to render the spark view.");

            _fubuRequest.Set(new CurrentMimeType("*/*", "text/html"));

            var response = _fubuRequest.Get<TResponse>();
            if (response == null)
                return;

            response.Body = _outputWriter.Record(() => InsideBehavior.Invoke()).GetText();

            _mailer.SendEmail(response.Subject, response.ToEmailAddress, response.Body);
        }

        public void InvokePartial()
        {
            throw new System.NotImplementedException();
        }
    }