diff --git a/domains/white.json b/domains/white.json
index 6ee7a6f371..980dfa1b48 100644
--- a/domains/white.json
+++ b/domains/white.json
@@ -12,7 +12,7 @@
       "185.199.111.153"
     ],
     "MX": [
-      "SMTP.GOOGLE.COM"
+      "smtp.google.com"
     ],
     "TXT": [
       "v=spf1 include:://improvmx.com ~all",