diff --git a/domains/denboy0123.json b/domains/denboy0123.json
index d3ee7418e..8d054ba67 100644
--- a/domains/denboy0123.json
+++ b/domains/denboy0123.json
@@ -5,10 +5,7 @@
     },
     "record": {
         "A": ["217.174.245.249"],
-        "MX": [
-      "mx1.improvmx.com",
-      "mx2.improvmx.com"
-    ],
-        "TXT": "v=spf1 include:spf.improvmx.com ~all"
+        "MX": ["mail.is-a.dev"],
+        "TXT": "v=spf1 mx a:mail.is-a.dev ~all"
     }
 }