diff --git a/domains/securesandbox.json b/domains/securesandbox.json
index 16a8aee12..d15d119ca 100644
--- a/domains/securesandbox.json
+++ b/domains/securesandbox.json
@@ -6,7 +6,10 @@
     "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=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCqstJSWbINtFx1fSomoSdFnVgLNt9dQgSrwrBQKyWqVd/FCUJxSKftjXAUthTCddxGwggtlrm3nbj8/fwNUpTDJ0znmG3JnuSmZ3Ac/HBrnySZjyQw152/A9eW+wMYMsk4DjACYfkGubdIx12i5LS4YFeBbYjtAVHkf4Oy7Xj2EQIDAQAB",