add emails for newsletter

config/routes.rb

@@ -2,5 +2,6 @@ Rails.application.routes.draw do
   devise_for :admin_users, ActiveAdmin::Devise.config
   ActiveAdmin.routes(self)
   resources :messages, controller: 'messages'
-  # For details on the DSL available within this file, see https://guides.rubyonrails.org/routing.html
+  resources :emails, controller: 'email'
+
 end