diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index cf4e83df..7082431a 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -127,8 +127,7 @@ variables:
       - "yes"
       - "no"
   TESTS_PROJECT_URL:
-    description: "URL of the E2E-test gitlab project API with project ID."
-    value: "gitlab.souvap-univention.de/api/v4/projects/6"
+    description: "URL of the E2E-test Gitlab project API with project ID."
   # please use the following set of variables with normalized names:
   DOMAIN: "${NAMESPACE}.${CLUSTER}.${BASE_DOMAIN}"
   ISTIO_DOMAIN: "${NAMESPACE}.istio.${CLUSTER}.${BASE_DOMAIN}"
@@ -192,7 +191,7 @@ env-cleanup:
 env-start:
   environment:
     name: "${NAMESPACE}"
-    url: "https://portal.${NAMESPACE}.${SWP_DOMAIN}"
+    url: "https://portal.${DOMAIN}"
     on_stop: "env-stop"
   extends: ".deploy-common"
   image: "${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/alpine/k8s:1.25.6"
diff --git a/helmfile/apps/open-xchange/helmfile.yaml b/helmfile/apps/open-xchange/helmfile.yaml
index abfd983f..1569df91 100644
--- a/helmfile/apps/open-xchange/helmfile.yaml
+++ b/helmfile/apps/open-xchange/helmfile.yaml
@@ -13,7 +13,7 @@ repositories:
 releases:
   - name: "dovecot"
     chart: "dovecot/dovecot"
-    version: "1.2.0"
+    version: "1.3.1"
     values:
       - "values-dovecot.yaml"
       - "values-dovecot.gotmpl"
diff --git a/helmfile/apps/open-xchange/values-openxchange.yaml b/helmfile/apps/open-xchange/values-openxchange.yaml
index c4ca58e2..c3e5602c 100644
--- a/helmfile/apps/open-xchange/values-openxchange.yaml
+++ b/helmfile/apps/open-xchange/values-openxchange.yaml
@@ -65,6 +65,7 @@ appsuite:
       com.openexchange.capability.smime: "true"
       # Secondary Accounts
       com.openexchange.mail.secondary.authType: "XOAUTH2"
+      com.openexchange.mail.transport.secondary.authType: "xoauth2"
       # Nextcloud integration
       com.openexchange.file.storage.nextcloud.oauth.url: "http://nextcloud/"
       com.openexchange.file.storage.nextcloud.oauth.webdav.username.strategy: "user"
diff --git a/helmfile/environments/default/images.gotmpl b/helmfile/environments/default/images.gotmpl
index 06f01a4c..11936009 100644
--- a/helmfile/environments/default/images.gotmpl
+++ b/helmfile/environments/default/images.gotmpl
@@ -108,8 +108,8 @@ images:
     repository: "bitnami/redis"
     tag: "7.0.12-debian-11-r0"
   univentionCorporateServer:
-    repository: "souvap/tooling/images/univention-corporate-server-swp/ucs"
-    tag: "20230806T234258"
+    repository: "souvap/tooling/images/univention-corporate-server-swp/ucs@sha256"
+    tag: "286503f13726399284b49d4521f45fdbed81216875d78e76dcae20e0d8301f65"
   xwiki:
     repository: "xwikisas/swp/xwiki"
     tag: "0.8-mariadb-tomcat"