diff --git a/domains/send.auth.sign.alvin.json b/domains/send.auth.sign.alvin.json
index c866917cf..fbe05e7a4 100644
--- a/domains/send.auth.sign.alvin.json
+++ b/domains/send.auth.sign.alvin.json
@@ -4,11 +4,7 @@
     "discord": "825382504353234954"
   },
   "record": {
-    "MX": [
-      {
-        target: "feedback-smtp.ap-northeast-1.amazonses.com",
-        priority: 10
-      }],
+    "MX": ["feedback-smtp.ap-northeast-1.amazonses.com"],
     "TXT": ["v=spf1 include:amazonses.com ~all"]
   }
 }