diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..d09612a
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,8 @@
+FROM alpine:latest
+
+ARG USERNAME=msmtp
+
+RUN adduser -D $USERNAME \
+    && apk add msmtp
+
+USER $USERNAME
\ No newline at end of file