diff --git a/domains/securesandbox.json b/domains/securesandbox.json
index 01573fc30..9bc90395d 100644
--- a/domains/securesandbox.json
+++ b/domains/securesandbox.json
@@ -6,7 +6,7 @@
     "discord": "crowleycrowd"
   },
   "records": {
-    "MX": ["feedback-smtp.us-east-1.amazonses.com"],
+    "MX": ["feedback-smtp.us-east-1.amazonses.com", "mx.smtp.dev"],
     "TXT": [
       "v=spf1 include:amazonses.com ~all",
       "p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCoNbgRUAQTGVvS4pmcJ5ok7j7kpE6lVkVpzW+KD1e1csgEC7ZkDKn0KwU1eCM7d7wn7/SJrL09ve5SLKkkYgYU2LfM13nqrVuqZHSKC4Boec9aWamerFOJOWRvKfbxVUy9hZOKZrw4lLfOQuBw13EpSTIi+TK/6p+ByZ/dzY9n9wIDAQAB",