post_install() { #set up the /var/run directory systemd-tmpfiles --create /usr/lib/tmpfiles.d/courier-mta.conf # perform all the tasks required of a standard Courier install echo <<<EOF To finish the installation, run: $ /usr/lib/courier/sysconftool /etc/courier/*.dist $ makealiases $ makesmtpaccess $ /usr/bin/mkdhparams And don't forget to configure an account to receive postmaster mail! EOF } pre_upgrade() { # the file courier-imapd.conf is renamed to courier-mta.conf from version 0.77.0-2 [ -f /usr/lib/tmpfiles.d/courier-imapd.conf ] && rm -f /usr/lib/tmpfiles.d/courier-imapd.conf [ "${1%%.*}" = "1" ] && [ "${2%%.*}" != "1" ] && echo "Please make sure you have read the guidance on pre-unicode maildir names." } post_upgrade() { echo <<<EOF Please run $ /usr/lib/courier/sysconftool /etc/courier/*.dist EOF } pre_remove() { # there may be many files not part of the original installation that would be useful to save # so save the whole configuration directory rather than try to list all possibilities # in backup(). mv -f /etc/courier /etc/courier-$1 echo "/etc/courier has been saved as /etc/courier-$1 - you may remove this folder if you wish." # clean up temporary storage rm -rf /run/courier /var/spool/courier }