diff --git a/opensmtpd/Dockerfile b/opensmtpd/Dockerfile
new file mode 100644
index 0000000..23ff489
--- /dev/null
+++ b/opensmtpd/Dockerfile
@@ -0,0 +1,15 @@
+FROM alpine:3.14
+
+RUN apk add --update --no-cache \
+        opensmtpd \
+        opensmtpd-extras \
+        rspamd \
+        opensmtpd-filter-rspamd && \
+    adduser \
+        -h /var/vmail \
+        -s /sbin/nologin \
+        -u 2000 \
+        -S -D \
+        vmail
+
+CMD ["smtpd", "-d"]
diff --git a/opensmtpd/Makefile b/opensmtpd/Makefile
new file mode 100644
index 0000000..aa4963d
--- /dev/null
+++ b/opensmtpd/Makefile
@@ -0,0 +1,10 @@
+USERNAME = rilla
+IMG_NAME = opensmtpd
+
+.PHONY: build build-nc
+
+build: Dockerfile
+	docker build -t $(USERNAME)/$(IMG_NAME) .
+
+build-nc: Dockerfile
+	docker build --no-cache -t $(USERNAME)/$(IMG_NAME) .