Postal.Mvc5 HttpContext workaround (issue #73)

gistfile1.cs

// Workaround for Postal.MVC5 1.2.0 issue 73
// https://github.com/andrewdavey/postal/issues/73
if (HttpContext.Current == null)
{
    var baseURL = ConfigurationManager.AppSettings["baseURL"].TrimEnd('/');
    var absolute = VirtualPathUtility.ToAbsolute("~/").TrimStart('/');

    HttpContext.Current = new HttpContext(
        new HttpRequest("", baseURL + "/" + absolute, ""),
        new HttpResponse(new StringWriter())
    );
}