FROM dovecot/dovecot:latest COPY --chown=mail:mail start.sh / COPY --chown=mail:mail templates/ /templates/ COPY config/ /config/ RUN mkdir /run/dovecot /cert /dh && \ chown mail:mail /config /cert /dh /run/dovecot VOLUME /cert VOLUME /dh EXPOSE 10993/tcp USER mail CMD ["/start.sh"]