diff --git a/infrastructure/07-certmanager/additional-roles.yaml b/infrastructure/07-certmanager/additional-roles.yaml
new file mode 100644
index 0000000..0158884
--- /dev/null
+++ b/infrastructure/07-certmanager/additional-roles.yaml
@@ -0,0 +1,21 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: dns-challenge-illium
+rules:
+- apiGroups: ["acme.steffenillium.de"] # "" indicates the core API group
+  resources: ["ionos"]
+  verbs: ["*"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: dns-challenge-illium-binding
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: dns-challenge-illium
+subjects:
+- kind: ServiceAccount
+  name: cert-manager
+  namespace: cert-manager
\ No newline at end of file
diff --git a/infrastructure/07-certmanager/dns-issuer.yaml b/infrastructure/07-certmanager/dns-issuer.yaml
index b363191..ce45725 100644
--- a/infrastructure/07-certmanager/dns-issuer.yaml
+++ b/infrastructure/07-certmanager/dns-issuer.yaml
@@ -33,7 +33,7 @@ metadata:
 spec:
   acme:
     # The ACME server URL
-    server: https://acme-v02.api.letsencrypt.org/
+    server: https://acme-v02.api.letsencrypt.org/directory
     # Email address used for ACME registration
     email: steffen.illium@gmail.com
     # Name of a secret used to store the ACME account private key
@@ -43,7 +43,7 @@ spec:
     solvers:
       - dns01:
           webhook:
-            # groupName: acme.fabmade.de
+            groupName: acme.
             solverName: ionos
             config:
               apiUrl: https://api.hosting.ionos.com/dns/v1
diff --git a/infrastructure/07-certmanager/kustomization.yaml b/infrastructure/07-certmanager/kustomization.yaml
index fa6d5d2..76efaa3 100644
--- a/infrastructure/07-certmanager/kustomization.yaml
+++ b/infrastructure/07-certmanager/kustomization.yaml
@@ -7,6 +7,7 @@ resources:
   - wildcard-cert.yaml
   - dns-issuer.yaml
   - ionos-secret-sealed.yaml
+  - additional-roles.yaml
   - https://github.com/cert-manager/cert-manager/releases/download/v1.14.4/cert-manager.crds.yaml
   - namespace.yaml