Dockerfile
FROM alpine:3.6
MAINTAINER Ianus IT GmbH <info@ianus-it.de>
RUN apk add --update ca-certificates postfix postfix-pcre postfix-policyd-spf-perl rsyslog &&\
rm -rf /var/cache/apk/*
COPY files/defaults/ /defaults/
COPY files/start.sh /start.sh
RUN echo "policy-spf unix - n n - - spawn user=nobody argv=/usr/bin/postfix-policyd-spf-perl" >> /etc/postfix/master.cf &&\
chmod +x /start.sh
CMD ["/start.sh"]
Source Repository