In AS:NET / Mono MVC2 method below form Render a view as a string is used to create html e-mail bodies.
Partiil view Order.ascx contains images like
    <img width='20%' alt='' src='<%= Url.Action("Logo", "Store")%>' />
In Emails those images appear without site address like /Store/Logo and thus images do not appear.
How to force image links to appear with absolute addresses like htttp:/Mysite.com/Store/Logo or add site base address to html email body is this helps.
ASP.NET / Mono MVC2 , .NET 3.5, jquery, jquery ui are used.
Controller Action method:
        var s = RenderViewToString<OrderConfirm>("~/Views/Checkout/Order.ascx", order);
public class ControllerBase : Controller
{
    protected string RenderViewToString<T>(string viewPath, T model)
    { 
        ViewData.Model = model;
        using (var writer = new StringWriter())
        {
            var view = new WebFormView(viewPath);
            var vdd = new ViewDataDictionary<T>(model);
            var viewCxt = new ViewContext(ControllerContext, view, vdd, new TempDataDictionary(), writer);
            viewCxt.View.Render(viewCxt, writer);
            return writer.ToString();
        }
    }
 
     
    