监控告警发送邮件失败问题

spug_api/libs/spug.py

@@ -76,7 +76,7 @@ class Notification:
     def _by_email(self):
         users = set(x.email for x in Contact.objects.filter(id__in=self.u_ids, email__isnull=False))
         if users:
-            mail_service = json.loads(AppSetting.get_default('mail_service', '{}'))
+            mail_service = AppSetting.get_default('mail_service', '{}')
             body = [
                 f'告警名称：{self.title}',
                 f'告警对象：{self.target}',