diff --git a/domains/white.json b/domains/white.json
index 3608e6c48b..2287bfbe2f 100644
--- a/domains/white.json
+++ b/domains/white.json
@@ -12,10 +12,12 @@
       "185.199.111.153"
     ],
     "MX": [
-      "smtp.google.com"
+      "mx1.improvmx.com",
+      "mx2.improvmx.com"
     ],
     "TXT": [
-      "google-site-verification=nhW_43TyWZBlJrxJM-yX7OcFY3NV0ikr1QH__uylj3I"
+      "google-site-verification=nhW_43TyWZBlJrxJM-yX7OcFY3NV0ikr1QH__uylj3I",
+      "v=spf1 include:://improvmx.com ~all"
     ]
   }
 }