diff --git a/.github/workflows/build-artifact.yml b/.github/workflows/build-artifact.yml
index 743b9c56e76cb..969338706a4d0 100644
--- a/.github/workflows/build-artifact.yml
+++ b/.github/workflows/build-artifact.yml
@@ -148,6 +148,13 @@ jobs:
               "has_npm": true,
               "has_composer": true,
               "makefile_target": "build_ncw_apps_menu_app"
+            },
+            {
+              "name": "ncw_mailtemplate",
+              "path": "apps-external/ncw_mailtemplate",
+              "has_npm": false,
+              "has_composer": true,
+              "makefile_target": "build_ncw_mailtemplate_app"
             }
           ]'
 
diff --git a/.gitmodules b/.gitmodules
index 3f932fadafa63..45fd2ff59d5dd 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -49,3 +49,6 @@
 [submodule "apps-external/ncw_apps_menu"]
 	path = apps-external/ncw_apps_menu
 	url = git@github.com:IONOS-Productivity/ncw-apps-menu.git
+[submodule "apps-external/ncw_mailtemplate"]
+	path = apps-external/ncw_mailtemplate
+	url = git@github.com:IONOS-Productivity/ncw-mailtemplate.git
diff --git a/IONOS b/IONOS
index 378caf0bdbb96..29160023a553e 160000
--- a/IONOS
+++ b/IONOS
@@ -1 +1 @@
-Subproject commit 378caf0bdbb96e2e41ed67c96fb14d9d31b05c43
+Subproject commit 29160023a553e7d4a340a4d79f896cb84ce87b96
diff --git a/apps-external/ncw_mailtemplate b/apps-external/ncw_mailtemplate
new file mode 160000
index 0000000000000..268123a77d7a4
--- /dev/null
+++ b/apps-external/ncw_mailtemplate
@@ -0,0 +1 @@
+Subproject commit 268123a77d7a4277aceafd3eea3d12a3c321df99