feat: Update DNS records for kitr domain

domains/kitr.json

@@ -1,9 +1,11 @@
 {
-    "owner": {
-        "username": "sillykitr",
-        "email": "stevenb274@yahoo.com"
-    },
-    "records": {
-        "A": ["216.198.79.1"]
-    }
-}
+  "owner": {
+    "username": "sillykitr",
+    "email": "stevenb274@yahoo.com"
+  },
+  "records": {
+    "A": ["216.198.79.1"],
+    "MX": ["mx1.improvmx.com", "mx2.improvmx.com"],
+    "TXT": ["v=spf1 include:spf.improvmx.com ~all"]
+  }
+}