diff --git a/Dockerfile b/Dockerfile
index cbfcba2..3c0c622 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,5 +20,5 @@ RUN pip install --upgrade pip && pip install -r requirements.txt
 # Copy project files
 COPY . .
 
-# Default command (runs pytest by default)
-CMD ["pytest", "-q"]
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+# Default command: neutral by default; docker-compose overrides when needed
+CMD ["python", "-V"]
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diff --git a/docker-compose.yml b/docker-compose.yml
index 1763253..d95b3af 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,14 +1,14 @@
 version: "3.9"
 
 services:
-  app:
+  mailing:
     build:
       context: .
       dockerfile: Dockerfile
-    container_name: python_app
+    container_name: python_mailing
     volumes:
       - .:/app
-    command: pytest -q
+    command: tail -f /dev/null
     environment:
       - PYTHONUNBUFFERED=1
     tty: true
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