public virtual ActionResult AttachStyleImage(string styleId)
        {
            LogI("AttachStyleImage, styleId=" + styleId);
            var attachment = EmailAttachmentViewModel.GetStyleImageAsAttachment(Db, LogService, Time, styleId);

            return(JsonGet(ValueResult <EmailAttachmentViewModel> .Success("", attachment)));
        }
        public virtual ActionResult GetAttachment(long id)
        {
            var file     = EmailAttachmentViewModel.GetAttachmentFilepath(Db, id);
            var filename = Path.GetFileName(file);

            if (System.IO.File.Exists(file))
            {
                return(File(file, FileHelper.GetMimeTypeByExt(Path.GetExtension(filename))));
            }
            return(new HttpNotFoundResult());
        }