public ActionResult EditEmail(NewsLettersMail model)
        {
            if (ModelState.IsValid)
            {
                db.Entry(model).State = EntityState.Modified;
                db.SaveChanges();
                return(RedirectToAction("Emails"));
            }

            return(PartialView(model));
        }
        public ActionResult NewEmail(NewsLettersMail model)
        {
            if (ModelState.IsValid)
            {
                if (!db.NewsLettersMails.Where(p => p.Email.ToLower() == model.Email).Any())
                {
                    model.SubmitTime    = DateTime.Now;
                    model.DeActivatCode = Guid.NewGuid().ToString();
                    db.NewsLettersMails.Add(model);
                    db.SaveChanges();
                }

                return(RedirectToAction("Emails"));
            }
            return(PartialView(model));
        }