diff --git a/.github/ct.yaml b/.github/ct.yaml
index 6f7e3893..3674106f 100644
--- a/.github/ct.yaml
+++ b/.github/ct.yaml
@@ -5,3 +5,5 @@ chart-repos:
 check-version-increment: true
 debug: true
 target-branch: main
+namespace: zammad
+release-label: zammad
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index cb54f59b..5e03f64e 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -56,6 +56,7 @@ jobs:
     runs-on: ubuntu-22.04
     needs:
       - lint-chart
+      - super-linter
     strategy:
       matrix:
         k8s:
@@ -120,5 +121,11 @@ jobs:
           config: .github/kind-config.yaml
           node_image: kindest/node:${{ matrix.k8s }}
 
+      - name: Create Namespace 'zammad'
+        run: kubectl create namespace zammad
+
+      - name: Install secrets
+        run: kubectl create --namespace zammad --filename zammad/ci/full-secrets.yaml
+
       - name: Run chart-testing (install)
-        run: ct install --config .github/ct.yaml --helm-extra-args '--timeout 900s'
+        run: ct install --config .github/ct.yaml --helm-extra-args '--timeout 900s'
\ No newline at end of file
diff --git a/zammad/Chart.yaml b/zammad/Chart.yaml
index 9d787fdd..1a4af95a 100644
--- a/zammad/Chart.yaml
+++ b/zammad/Chart.yaml
@@ -1,6 +1,6 @@
 apiVersion: v2
 name: zammad
-version: 10.3.3
+version: 10.3.4
 appVersion: 6.2.0-1
 description: Zammad is a web based open source helpdesk/customer support system with many features to manage customer communication via several channels like telephone, facebook, twitter, chat and e-mails.
 home: https://zammad.org
diff --git a/zammad/ci/README.md b/zammad/ci/README.md
new file mode 100644
index 00000000..7a1ffc5e
--- /dev/null
+++ b/zammad/ci/README.md
@@ -0,0 +1,3 @@
+# Chart-Testing
+
+This directory provides [files for testing different configurations with chart-testing](https://github.com/helm/chart-testing/blob/main/doc/ct_install.md).
diff --git a/zammad/ci/default-values.yaml b/zammad/ci/default-values.yaml
new file mode 100644
index 00000000..e69de29b
diff --git a/zammad/ci/full-secrets.yaml b/zammad/ci/full-secrets.yaml
new file mode 100644
index 00000000..8f8f54ec
--- /dev/null
+++ b/zammad/ci/full-secrets.yaml
@@ -0,0 +1,40 @@
+apiVersion: v1
+data:
+  root-password: emFtbWFkYWRtaW4=
+  root-user: emFtbWFkYWRtaW4=
+kind: Secret
+metadata:
+  name: minio-existing-secret
+type: Opaque
+---
+apiVersion: v1
+data:
+  redis-password: cmVkaXM=
+kind: Secret
+metadata:
+  name: redis-existing-secret
+type: Opaque
+---
+apiVersion: v1
+data:
+  postgresql-password: emFtbWFk
+kind: Secret
+metadata:
+  name: postgresql-existing-secret
+type: Opaque
+---
+apiVersion: v1
+data:
+  elasticsearch-password: emFtbWFk
+kind: Secret
+metadata:
+  name: elasticsearch-existing-secret
+type: Opaque
+---
+apiVersion: v1
+data:
+  autowizard: 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
+kind: Secret
+metadata:
+  name: autowizard
+type: Opaque
\ No newline at end of file
diff --git a/zammad/ci/full-values.yaml b/zammad/ci/full-values.yaml
new file mode 100644
index 00000000..254cf8b8
--- /dev/null
+++ b/zammad/ci/full-values.yaml
@@ -0,0 +1,37 @@
+secrets:
+  autowizard:
+    useExisting: true
+    secretKey: autowizard
+    secretName: autowizard
+  elasticsearch:
+    useExisting: true
+    secretKey: elasticsearch-password
+    secretName: elasticsearch-existing-secret
+  postgresql:
+    useExisting: true
+    secretKey: postgresql-password
+    secretName: postgresql-existing-secret
+  redis:
+    useExisting: true
+    secretKey: redis-password
+    secretName: redis-existing-secret
+
+autoWizard:
+  enabled: true
+
+elasticsearch:
+  security:
+    existingSecret: elasticsearch-existing-secret
+
+minio:
+  auth:
+    existingSecret: minio-existing-secret
+
+redis:
+  auth:
+    existingSecret: redis-existing-secret
+    existingSecretPasswordKey: redis-password
+
+zammadConfig:
+  minio:
+    enabled: true
diff --git a/zammad/templates/statefulset.yaml b/zammad/templates/statefulset.yaml
index 064b1a38..54db72ce 100644
--- a/zammad/templates/statefulset.yaml
+++ b/zammad/templates/statefulset.yaml
@@ -132,8 +132,9 @@ spec:
                   name: {{ template "zammad.postgresqlSecretName" . }}
                   key: {{ .Values.secrets.postgresql.secretKey }}
             - name: DATABASE_URL
-              value: "postgres://{{ .Values.zammadConfig.postgresql.user }}:$(POSTGRESQL_PASS)@{{ if .Values.zammadConfig.postgresql.enabled }}{{ .Release.Name }}-postgresql{{ else }}{{ .Values.zammadConfig.postgresql.host }}{{ end }}:{{ .Values.zammadConfig.postgresql.port }}/{{ .Values.zammadConfig.postgresql.db }}"          {{- if .Values.autoWizard.enabled }}
+              value: "postgres://{{ .Values.zammadConfig.postgresql.user }}:$(POSTGRESQL_PASS)@{{ if .Values.zammadConfig.postgresql.enabled }}{{ .Release.Name }}-postgresql{{ else }}{{ .Values.zammadConfig.postgresql.host }}{{ end }}:{{ .Values.zammadConfig.postgresql.port }}/{{ .Values.zammadConfig.postgresql.db }}"
             {{ include "zammad.env.S3_URL" . | nindent 12 }}
+          {{- if .Values.autoWizard.enabled }}
             - name: AUTOWIZARD_JSON
               valueFrom:
                 secretKeyRef:
diff --git a/zammad/values.yaml b/zammad/values.yaml
index ad9d5077..647ad9c0 100644
--- a/zammad/values.yaml
+++ b/zammad/values.yaml
@@ -33,6 +33,9 @@ ingress:
     #   hosts:
     #     - chart-example.local
 
+# Please note that passwords for PostgreSQL, Redis and S3 may not
+#   contain special characters which would require URL encoding.
+# See also https://github.com/zammad/zammad-helm/issues/251
 secrets:
   autowizard:
     useExisting: false