updates

DMS/docker-data/dms/config/user-patches.sh

@@ -29,6 +29,17 @@ else
     echo "[user-patches.sh] ⚠ master.cf.append not found, skipping"
 fi
 
+# NEW: Create and postmap local_transport_maps for selective filtering
+echo "[user-patches.sh] Creating local_transport_maps..."
+install -D -m 0644 /dev/null "$DST_DIR/local_transport_maps"
+cat > "$DST_DIR/local_transport_maps" << 'EOF'
+# Filter only local/internal deliveries (adjust to your domains)
+/^.*@example\.com$/   smtp:[localhost]:10025  # Replace with your domains, e.g. /^.*@andreasknuth\.de$/
+/^.*@another-domain\.com$/   smtp:[localhost]:10025
+EOF
+postmap "$DST_DIR/local_transport_maps"
+echo "[user-patches.sh] ✓ local_transport_maps created and mapped"
+
 # Verify content filter script exists and is executable
 if [ -x "/usr/local/bin/content_filter.py" ]; then
     echo "[user-patches.sh] ✓ Content filter script found"