diff --git a/argocd/apps/nextcloud/nextcloud.yaml b/argocd/apps/nextcloud/nextcloud.yaml
index a5fc4d5..dbf66a5 100644
--- a/argocd/apps/nextcloud/nextcloud.yaml
+++ b/argocd/apps/nextcloud/nextcloud.yaml
@@ -63,13 +63,17 @@ spec:
         - name: nextcloud.mail.enabled
           value: 'true'
         - name: nextcloud.mail.fromAddress
-          value: 'admin@innovation-hub-niedersachsen.de'
+          value: 'admin'
+        - name: nextcloud.mail.domain
+          value: 'innovation-hub-niedersachsen.de'
         - name: nextcloud.mail.smtp.host
           value: 'smtp.innovation-hub-niedersachsen.de'
         - name: nextcloud.mail.smtp.secure
-          value: 'empty'
+          value: 'none'
         - name: nextcloud.mail.smtp.port
           value: '25'
+        - name: nextcloud.mail.smtp.authtype
+          value: 'none'
         - name: persistence.enabled
           value: 'true'
         - name: persistence.nextcloudData.enabled