diff --git a/domains/tungnm15.json b/domains/tungnm15.json
index 61ad7993e4..b664804a3a 100644
--- a/domains/tungnm15.json
+++ b/domains/tungnm15.json
@@ -1,17 +1,14 @@
 {
   "description": "Tung Nguyen Manh",
-  "domain": "tungnm15.is-a.dev",
-  
   "owner": {
     "username": "coderviet1111",
     "email": "anhnh@tungnm15.is-a.dev"
   },
   "records": {
     "MX": [
-      { "priority": 10, "value": "mx1.improvmx.com" },
-      { "priority": 20, "value": "mx2.improvmx.com" }
+      { "priority": 10, "value": "mx1.improvmx.com." },
+      { "priority": 20, "value": "mx2.improvmx.com." }
     ],
-    
     "TXT": [
       "v=spf1 include:spf.improvmx.com ~all"
     ]