diff --git a/mailcow/src/mailcow-dockerized/data/Dockerfiles/netfilter/Dockerfile b/mailcow/src/mailcow-dockerized/data/Dockerfiles/netfilter/Dockerfile
new file mode 100644
index 0000000..42aafd4
--- /dev/null
+++ b/mailcow/src/mailcow-dockerized/data/Dockerfiles/netfilter/Dockerfile
@@ -0,0 +1,15 @@
+FROM alpine:3.11
+LABEL maintainer "Andre Peters <andre.peters@servercow.de>"
+
+ENV XTABLES_LIBDIR /usr/lib/xtables
+ENV PYTHON_IPTABLES_XTABLES_VERSION 12
+ENV IPTABLES_LIBDIR /usr/lib
+
+RUN apk add --virtual .build-deps gcc python3-dev libffi-dev openssl-dev \
+  && apk add -U python3 iptables ip6tables tzdata musl-dev \
+  && pip3 install --upgrade pip python-iptables redis ipaddress dnspython \
+#  && pip3 install --upgrade pip python-iptables==0.13.0 redis ipaddress dnspython \
+  && apk del .build-deps
+
+COPY server.py /
+CMD ["python3", "-u", "/server.py"]