diff --git a/Dockerfile b/Dockerfile
index d93a8d9..7eea2e7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,3 +2,12 @@ ARG ALPINE_VERSION=3.13.6
 ARG BASE_IMAGE=sutty/monit
 FROM ${BASE_IMAGE}:${ALPINE_VERSION}
 MAINTAINER "f <f@sutty.nl>"
+
+RUN apk add --no-cache opendkim mini-sendmail
+COPY ./monit.conf /etc/monit.d/opendkim.conf
+COPY ./opendkimd.sh /usr/local/bin/opendkimd
+COPY ./sendmail.sh /usr/bin/sendmail
+RUN install -dm 2750 -o opendkim -g opendkim /run/opendkim
+
+EXPOSE 8891
+VOLUME /etc/opendkim
diff --git a/monit.conf b/monit.conf
new file mode 100644
index 0000000..320baf0
--- /dev/null
+++ b/monit.conf
@@ -0,0 +1,3 @@
+check process opendkim with pidfile /tmp/opendkim.pid
+  start program = "/usr/local/bin/opendkimd start"
+  stop program = "/usr/local/bin/opendkimd stop"
diff --git a/opendkimd.sh b/opendkimd.sh
new file mode 100755
index 0000000..f106878
--- /dev/null
+++ b/opendkimd.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+pid=/tmp/opendkim.pid
+
+case $1 in
+  stop) cat ${pid} | xargs kill ;;
+  *)
+    chown -R opendkim:opendkim /etc/opendkim
+    /usr/sbin/opendkim ;;
+esac
diff --git a/sendmail.sh b/sendmail.sh
new file mode 100755
index 0000000..3ca4b69
--- /dev/null
+++ b/sendmail.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+/var/lib/mini-sendmail/mini_sendmail -s postfix $@
+
+exit $?