diff --git a/argocd/apps/openproject/values-openproject.yaml b/argocd/apps/openproject/values-openproject.yaml
index 9a7bb96..1bc29ca 100644
--- a/argocd/apps/openproject/values-openproject.yaml
+++ b/argocd/apps/openproject/values-openproject.yaml
@@ -12,6 +12,16 @@ spec:
     targetRevision: 11.*.*
     helm:
       values: |
+        develop: true
+        env:
+          - name: EMAIL_DELIVERY_METHOD
+            value: "smtp"
+          - name: SMTP_ADDRESS
+            value: smtp://192.168.4.125:25?ignoreTLS=true&tls={rejectUnauthorized:false}&secure=false
+          - name: SMTP_PORT
+            value: "25"
+          - name: SMTP_DOMAIN
+            value: "innovation-hub-niedersachsen.de"      
         ingress:
           enabled: true
           ingressClassName: traefik