FROM amd64/debian:bullseye RUN apt-get update && \ apt-get install -y \ dovecot-antispam \ dovecot-core \ dovecot-imapd \ dovecot-ldap \ dovecot-managesieved \ dovecot-sieve \ dovecot-lmtpd && \ rm -rf /etc/dovecot/* RUN useradd mailstore COPY entrypoint.sh /usr/local/bin/entrypoint ENTRYPOINT ["/usr/local/bin/entrypoint"]