diff --git a/app/Http/Controllers/MailController.php b/app/Http/Controllers/MailController.php
index 84d774d..ca50af6 100644
--- a/app/Http/Controllers/MailController.php
+++ b/app/Http/Controllers/MailController.php
@@ -63,24 +63,31 @@ function ($attribute, $value, $fail) {
             return abort(400);
         }
 
-        $now_time = Carbon::now();
 
         try {
             $key = Crypt::decryptString($key);
+            $key = Carbon::parse($key);
         } catch (\Throwable $th) {
             return abort(400);
         }
 
-        $key = Carbon::parse($key);
-        if ($key->diffInMinutes($now_time) > 5) {
-            $key = $now_time;
-        }
+        // $now_time = Carbon::now();
+        // if ($key->diffInMinutes($now_time) > 5) {
+        //     $key = $now_time;
+        // }
 
         $to_hash = hash('sha256', $email);
 
+        $max_received_at = Mail::where([
+            ['to_hash', '=', $to_hash],
+            ['received_at', '>=', $key],
+        ])
+        ->orderBy('received_at', 'desc')
+        ->value("received_at");
+
         $new_email_list = Mail::where([
             ['to_hash', '=', $to_hash],
-            ['created_at', '>=', $key],
+            ['received_at', '>=', $key],
         ])
             ->select([
                 'id as key',
@@ -102,7 +109,7 @@ function ($attribute, $value, $fail) {
             'msg'  => '',
             'data' => [
                 'list'    => $new_email_list,
-                'new_key' => Crypt::encryptString($now_time->format('Y-m-d H:i:s')),
+                'new_key' => Crypt::encryptString(Carbon::parse($max_received_at)->format('Y-m-d H:i:s')),
             ],
         ]);
     }
diff --git a/resources/views/welcome.blade.php b/resources/views/welcome.blade.php
index 85ecb82..e4cfe4b 100644
--- a/resources/views/welcome.blade.php
+++ b/resources/views/welcome.blade.php
@@ -193,7 +193,7 @@
 
         function isValidDomain(domain) {
             console.log(domain);
-            var pattern = /^(?!:\/\/)([a-zA-Z0-9-]+\.)*[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9]\.[a-zA-Z]{2,11}?$/;
+            var pattern = /^(?!:\/\/)([a-zA-Z0-9-]+\.)*[a-zA-Z0-9-]+\.[a-zA-Z]{2,11}$/;
             return pattern.test(domain);
         }