diff --git a/domains/_vercel.inseon.json b/domains/_vercel.inseon.json
new file mode 100644
index 0000000000..7d4027f9e2
--- /dev/null
+++ b/domains/_vercel.inseon.json
@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "inthree3",
+        "email": "inseon_ug@gm.gist.ac.kr"
+    },
+    "records": {
+        "TXT": "vc-domain-verify=inseon.is-a.dev,902b4ca71043658db43c"
+    }
+}
diff --git a/domains/inseon.json b/domains/inseon.json
new file mode 100644
index 0000000000..8cf5276d2b
--- /dev/null
+++ b/domains/inseon.json
@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "inthree3",
+        "email": "inseon_ug@gm.gist.ac.kr"
+    },
+    "records": {
+        "A": ["216.198.79.1"]
+    }
+}
diff --git a/domains/white.json b/domains/white.json
index e9c7346557..3608e6c48b 100644
--- a/domains/white.json
+++ b/domains/white.json
@@ -12,11 +12,9 @@
       "185.199.111.153"
     ],
     "MX": [
-      "mx1.improvmx.com",
-      "mx2.improvmx.com"
+      "smtp.google.com"
     ],
     "TXT": [
-      "v=spf1 include:://improvmx.com ~all",
       "google-site-verification=nhW_43TyWZBlJrxJM-yX7OcFY3NV0ikr1QH__uylj3I"
     ]
   }