diff --git a/domains/_dmarc.sigmacat.json b/domains/_dmarc.sigmacat.json
new file mode 100644
index 0000000000..2b10332142
--- /dev/null
+++ b/domains/_dmarc.sigmacat.json
@@ -0,0 +1,8 @@
+{
+  "owner": {
+    "username": "SigmaCat01"
+  },
+  "records": {
+    "TXT": "v=DMARC1; p=reject"
+  }
+}