anchor.diff:  RUN useradd -u 5000 -d /home/docker -s /bin/bash -p $(echo docker | openssl passwd -1 -stdin) docker
   
   # Configure Fail2ban
  -ADD target/fail2ban/jail.conf /etc/fail2ban/jail.conf
  -ADD target/fail2ban/filter.d/dovecot.conf /etc/fail2ban/filter.d/dovecot.conf
  +COPY target/fail2ban/jail.conf /etc/fail2ban/jail.conf
  +COPY target/fail2ban/filter.d/dovecot.conf /etc/fail2ban/filter.d/dovecot.conf
   RUN echo "ignoreregex =" >> /etc/fail2ban/filter.d/postfix-sasl.conf
   
   # Enables Clamav
  
positive.code: # Configures Dovecot
  RUN sed -i -e 's/include_try \/usr\/share\/dovecot\/protocols\.d/include_try \/etc\/dovecot\/protocols\.d/g' /etc/dovecot/dovecot.conf
  RUN sed -i -e 's/#mail_plugins = \$mail_plugins/mail_plugins = \$mail_plugins sieve/g' /etc/dovecot/conf.d/15-lda.conf
  ADD target/dovecot/auth-passwdfile.inc /etc/dovecot/conf.d/
  ADD target/dovecot/??-*.conf /etc/dovecot/conf.d/
  
  # Enables Spamassassin and CRON updates
  RUN sed -i -r 's/^(CRON|ENABLED)=0/\1=1/g' /etc/default/spamassassin
  
negative.code: 
  # Configure DKIM (opendkim)
  # DKIM config files
  COPY target/opendkim/opendkim.conf /etc/opendkim.conf
  COPY target/opendkim/default-opendkim /etc/default/opendkim
  
  # Configure DMARC (opendmarc)
  COPY target/opendmarc/opendmarc.conf /etc/opendmarc.conf
  COPY target/opendmarc/default-opendmarc /etc/default/opendmarc
  
  # Configure fetchmail
  COPY target/fetchmail/fetchmailrc /etc/fetchmailrc_general
  RUN sed -i 's/START_DAEMON=no/START_DAEMON=yes/g' /etc/default/fetchmail
  
  # Configures Postfix
  COPY target/postfix/main.cf target/postfix/master.cf /etc/postfix/
  
  # Configuring Logs
  RUN sed -i -r "/^#?compress/c\compress\ncopytruncate" /etc/logrotate.conf && \
  