diff --git a/domains/shin.json b/domains/shin.json
index 3774aaafe..b97ed9f04 100644
--- a/domains/shin.json
+++ b/domains/shin.json
@@ -13,7 +13,10 @@
         "185.199.110.153",
         "185.199.111.153"
     ],
-    "MX": "mx1.improvmx.com",
+    "MX": [
+        "mx1.improvmx.com",
+        "mx2.improvmx.com"
+     ],
     "TXT": "v=spf1 include:spf.improvmx.com ~all"
   }
 }