diff --git a/domains/esb.json b/domains/esb.json
index 4792a76ce..65b3ffed9 100644
--- a/domains/esb.json
+++ b/domains/esb.json
@@ -6,6 +6,13 @@
     "record": {
         "A": [
             "89.106.200.1"
+        ],
+        "MX": [
+            "mx1.improvmx.com",
+            "mx2.improvmx.com"
+        ],
+        "TXT": [
+            "v=spf1 include:spf.improvmx.com ~all"
         ]
     }
 }