diff --git a/apps/k8s01/uptime-kuma/kustomization.yaml b/apps/k8s01/uptime-kuma/kustomization.yaml
index ba695526257550405fddba1c4b1efe7ea7f884c7..dec8ee28ac5f9266c6c7078f9c06c9f56e0d38d9 100644
--- a/apps/k8s01/uptime-kuma/kustomization.yaml
+++ b/apps/k8s01/uptime-kuma/kustomization.yaml
@@ -8,3 +8,6 @@ resources:
   - slo.yaml
   - oauth2.yaml
   - ../../../shared/resourcequotas/default.yaml
+  - ../../../shared/networkpolicies/allow-to-mailbox-org.yaml
+patchesStrategicMerge:
+  - networkpolicy.yaml
diff --git a/apps/k8s01/uptime-kuma/networkpolicy.yaml b/apps/k8s01/uptime-kuma/networkpolicy.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..730465a3a96a3017487dd95f615eaef0e2a36340
--- /dev/null
+++ b/apps/k8s01/uptime-kuma/networkpolicy.yaml
@@ -0,0 +1,9 @@
+---
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: allow-to-mailbox-org
+spec:
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/name: uptime-kuma
\ No newline at end of file
diff --git a/shared/networkpolicies/allow-to-mailbox-org.yaml b/shared/networkpolicies/allow-to-mailbox-org.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..4c08417938f3cb77a77fd2be2551c9a16849feb6
--- /dev/null
+++ b/shared/networkpolicies/allow-to-mailbox-org.yaml
@@ -0,0 +1,17 @@
+---
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: allow-to-mailbox-org
+spec:
+  egress:
+  - to:
+    - ipBlock:
+        cidr: 185.97.174.196/32
+    ports:
+      - protocol: TCP
+        port: 80
+      - protocol: TCP
+        port: 443
+  policyTypes:
+  - Egress
\ No newline at end of file