/**
  * Store a newly created resource in storage.
  *
  * @param Request $request
  * @return \Illuminate\Http\Response
  */
 public function store(Request $request)
 {
     $data = $request->except('_token');
     Mail::firstOrCreate($data);
     return redirect(route('admin.mails.index'))->with('success', 'L\'adresse e-mail a bien été ajoutée');
 }