diff --git a/domains/sig1._domainkey.cosintan.json b/domains/sig1._domainkey.cosintan.json
new file mode 100644
index 0000000000..bb8ad2ee67
--- /dev/null
+++ b/domains/sig1._domainkey.cosintan.json
@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "cosintan-tg",
+        "email": "cosintan.tg@gmail.com"
+    },
+    "records": {
+        "CNAME": "sig1.dkim.cosintan.is-a.dev.at.icloudmailadmin.com"
+    }
+}
\ No newline at end of file