Update sautify-mail.is-cool.dev.json

domains/sautify-mail.is-cool.dev.json

@@ -7,17 +7,8 @@
     "email": "kenliz1738@gmail.com"
   },
   "record": {
-      "MX": [
-                {
-            "priority": 10,
-            "value": "mx1.improvmx.com"
-        },
+    "MX": ["10 mx1.improvmx.com", "20 mx2.improvmx.com"]
 
-        {
-            "priority": 20,
-            "value": "mx2.improvmx.com"
-        }
-            ],
         "TXT": ["v=spf1 include:spf.improvmx.com ~all"]
   },
   "proxied": false