diff --git a/app/utils.py b/app/utils.py
index 37b8a7d..5464cb3 100644
--- a/app/utils.py
+++ b/app/utils.py
@@ -312,33 +312,26 @@ def get_all_emails(count=50):
     :return: 邮件列表
     """
     try:
-        # 获取所有邮件键
-        pattern = 'email:*'
-        email_keys = redis_client.keys(pattern)
+        # 获取时间索引键
+        time_keys = redis_client.keys('time:*')
+        # 按时间倒序排序
+        time_keys.sort(reverse=True)
+        # 限制数量
+        time_keys = time_keys[:count]
         
-        # 获取每个邮件的详细信息
         emails = []
-        for key in email_keys:
-            email_data = redis_client.hgetall(key)
-            if email_data:
-                # 转换字节数据为字符串
-                email = {k.decode(): v.decode() for k, v in email_data.items()}
-                # 解析 JSON 字符串字段
-                if 'recipients' in email:
-                    email['recipients'] = json.loads(email['recipients'])
-                if 'attachments' in email:
-                    email['attachments'] = json.loads(email['attachments'])
-                if 'headers' in email:
-                    email['headers'] = json.loads(email['headers'])
-                if 'peer' in email:
-                    email['peer'] = json.loads(email['peer'])
-                emails.append(email)
+        for time_key in time_keys:
+            # 从时间索引获取邮件键
+            email_key = redis_client.get(time_key)
+            if email_key:
+                # 获取邮件数据
+                email_data = redis_client.hgetall(email_key)
+                if email_data:
+                    # 转换字节数据为字符串
+                    email = {k.decode(): v.decode() for k, v in email_data.items()}
+                    emails.append(email)
         
-        # 按时间戳排序
-        emails.sort(key=lambda x: x.get('timestamp', ''), reverse=True)
-        
-        # 限制返回数量
-        return emails[:count]
+        return emails
         
     except Exception as e:
         logger.error(f"Error getting all emails: {str(e)}")