diff --git a/domains/send.cieldt.json b/domains/send.cieldt.json
index efc2a0c967..7bd4892a7b 100644
--- a/domains/send.cieldt.json
+++ b/domains/send.cieldt.json
@@ -5,9 +5,11 @@
     },
     "records": {
         "TXT": "v=spf1 include:amazonses.com ~all",
-        "MX": {
-            "value": "feedback-smtp.ap-northeast-1.amazonses.com",
-            "priority": 10
-        }
+        "MX": [
+            {
+                "value": "feedback-smtp.ap-northeast-1.amazonses.com",
+                "priority": 10
+            }
+        ]
     }
 }