diff --git a/domains/penguin.json b/domains/penguin.json
index ceeb22aeb..f9c573bc3 100644
--- a/domains/penguin.json
+++ b/domains/penguin.json
@@ -13,7 +13,8 @@
     "MX": [
       "mx1.improvmx.com",
       "mx2.improvmx.com"
-    ]
+    ],
+    "TXT": "v=spf1 include:spf.improvmx.com ~all"
     
   },