FROM debian:bookworm-slim ENV DEBIAN_FRONTEND=noninteractive RUN apt-get update && apt-get install -y --no-install-recommends dovecot-core dovecot-imapd dovecot-lmtpd dovecot-sqlite ssl-cert ca-certificates && rm -rf /var/lib/apt/lists/* COPY dovecot.conf /etc/dovecot/dovecot.conf COPY dovecot-sql.conf.ext /etc/dovecot/dovecot-sql.conf.ext COPY entrypoint.sh /entrypoint.sh RUN chmod +x /entrypoint.sh EXPOSE 993 24 12345 CMD ["/entrypoint.sh"]