X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=mail-setup;h=98d5c415ae931655f906570ba4bdbca7862d0fe2;hb=7d5e9e87105fafa2243603f958c8b41cdaa7f0ad;hp=b97f3b929a5fd4f1f16105d9c8bcadf8c66951e5;hpb=0da09a2fa9c4ce921d5af5be8494c4a96cce43de;p=distro-setup diff --git a/mail-setup b/mail-setup index b97f3b9..98d5c41 100755 --- a/mail-setup +++ b/mail-setup @@ -1,27 +1,28 @@ #!/bin/bash -set -x - +# -*- eval: (outline-minor-mode); -*- +# * intro # Copyright (C) 2019 Ian Kelling +# SPDX-License-Identifier: AGPL-3.0-or-later -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at - -# http://www.apache.org/licenses/LICENSE-2.0 +if [ -z "$BASH_VERSION" ]; then echo "error: shell is not bash" >&2; exit 1; fi -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. +pre="${0##*/}:" +m() { printf "$pre %s\n" "$*"; "$@"; } +e() { printf "$pre %s\n" "$*"; } +err() { echo "[$(date +'%Y-%m-%d %H:%M:%S%z')]: $0: $*" >&2; } -# TODO: copy dkim keys from within this file. its now done in conflink. -# TODO: fix dkim key to b chmod 640, group Debian-exim +shopt -s nullglob -set -eE -o pipefail -trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR +if [[ -s /usr/local/lib/err ]]; then + source /usr/local/lib/err +elif [[ -s /a/bin/errhandle/err ]]; then + source /a/bin/errhandle/err +else + err "no err tracing script found" + exit 1 +fi -[[ $EUID == 0 ]] || exec sudo -E "$BASH_SOURCE" "$@" +[[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@" if [[ ! $SUDO_USER ]]; then echo "$0: error: requires running as nonroot or sudo" exit 1 @@ -34,9 +35,6 @@ usage() { Usage: ${0##*/} Setup exim4 & dovecot & related things -The minimal assumption we have is that /etc/mailpass exists - - -h|--help Print help and exit. EOF exit $1 @@ -52,43 +50,34 @@ EOF # background: ovecot does not yet have ocsp stapling support # reference: https://community.letsencrypt.org/t/simple-guide-using-lets-encrypt-ssl-certs-with-dovecot/2921 # -# for phone, same thing but username alerts, pass in ivy-pass. +# for phone, k9mail, same thing but username alerts, pass in ivy-pass. +# also, l2.b8.nz for secondary alerts +# fetching mail settings: folder poll frequency 10 minutes ####### -####### begin perstent password instructions ###### +# * perstent password instructions # # exim passwords: # # for hosts which have all private files I just use the same user # # for other hosts, each one get\'s their own password. # # for generating secure pass, and storing for server too: -# # user=USUALLY_SAME_AS_HOSTNAME -# user=li # f=$(mktemp) +# I use $HOSTNAME as username # apg -m 50 -x 70 -n 1 -a 1 -M CLN >$f -# s sed -i "/^$user:/d" /p/c/filesystem/etc/exim4/passwd -# echo "$user:$(mkpasswd -m sha-512 -s <$f)" >>/p/c/filesystem/etc/exim4/passwd -# # todo: port is no longer used in mailpass, remove it. -# echo "mail.iankelling.org 587 $user:$(<$f)" >> /p/c/machine_specific/$user/filesystem/etc/mailpass -# # then run this script, or part of it which uses /etc/mailpass +# s sed -i "/^$HOSTNAME:/d" /p/c/filesystem/etc/exim4/passwd +# echo "$HOSTNAME:$(mkpasswd -m sha-512 -s <$f)" >>/p/c/filesystem/etc/exim4/passwd +# reference: exim4_passwd_client(5) +# echo "mail.iankelling.org:$HOSTNAME:$(<$f)" > /p/c/machine_specific/$HOSTNAME/filesystem/etc/exim4/passwd.client +# # then run this script # # dovecot password, i just need 1 as I\'m the only user # mkdir /p/c/filesystem/etc/dovecot # echo "iank:$(doveadm pw -s ssha256)::::::" >>/p/c/filesystem/etc/dovecot/users -# conflink - - -# # for ad-hoc testing of some random new host sending mail: -# user=li # client host username & hostname -# f=$(mktemp) -# apg -m 50 -x 70 -n 1 -a 1 -M CLN >$f -# s sed -i "/^$user:/d" /etc/exim4/passwd -# echo "$user:$(mkpasswd -m sha-512 -s <$f)" | s tee -a /etc/exim4/passwd -# echo "mail.iankelling.org:$user:$(<$f)" | ssh root@$user dd of=/etc/exim4/passwd.client ####### end perstent password instructions ###### -####### begin persistent dkim/dns instructions ######### +# * persistent dkim/dns instructions # # Remove 1 level of comments in this section, set the domain var # # for the domain you are setting up, then run this and copy dns settings # # into dns. @@ -110,12 +99,7 @@ EOF # # lines 2+: append to hold space # echo "txt record contents:" # echo "v=DKIM1; k=rsa; p=$(sed -n '${x;s/\n//gp};2,$H' $domain.pem)" -# chmod 644 $domain.pem -# chmod 640 $domain-private.pem -# # in conflink, we chown these to group debian -# conflink -# # selector was also put into /etc/exim4/conf.d/main/000_localmacros, -# # via the mail-setup scripts +# # selector was also put into /etc/exim4/conf.d/main/000_local, # # 2017-02 dmarc policies: # # host -t txt _dmarc.gmail.com @@ -133,7 +117,6 @@ EOF # # i include fastmail\'s settings, per their instructions, # # and follow their policy. In mail in a box, or similar instructions, # # I\'ve seen recommended to not use a restrictive policy. -# echo "spf dns: name is empty, value: v=spf1 a include:spf.messagingengine.com ?all" # # to check if dns has updated, you do # host -a mesmtp._domainkey.$domain @@ -144,15 +127,13 @@ EOF # cat <<'EOF' # mx records, 2 records each, for * and empty domain # pri 10 mail.iankelling.org -# pri 20 in1-smtp.messagingengine.com -# pri 30 in2-smtp.messagingengine.com # EOF ####### end persistent dkim instructions ######### - +# * functions constants e() { printf "%s\n" "$*"; } -pi() { # package install +pi() { # package install without starting daemons local f if dpkg -s -- "$@" &> /dev/null; then return 0; @@ -160,9 +141,20 @@ pi() { # package install while fuser /var/lib/dpkg/lock &>/dev/null; do sleep 1; done f=/var/cache/apt/pkgcache.bin; if [[ ! -r $f ]] || (( $(( $(date +%s) - $(stat -c %Y $f ) )) > 60*60*12 )); then - apt-get update + m apt-get update + fi + f=/usr/sbin/policy-rc.d + dd of=$f 2>/dev/null </etc/systemd/system/mailclean.timer <<'EOF' +[Unit] +Description=Run mailclean daily + +[Timer] +OnCalendar=monthly + +[Install] +WantedBy=timers.target +EOF + +cat >/etc/systemd/system/mailclean.service <>/etc/default/spamassassin + # just noticed this in the config file, seems like a good idea. + sed -i '/^\s*NICE\s*=/d' /etc/default/spamassassin + e 'NICE="--nicelevel 15"' >>/etc/default/spamassassin + + m systemctl enable spamassassin + m systemctl start spamassassin + m systemctl reload spamassassin + + cat >/etc/systemd/system/spamddnsfix.service <<'EOF' +[Unit] +Description=spamd dns bug fix cronjob + +[Service] +Type=oneshot +ExecStart=/a/bin/distro-setup/spamd-dns-fix +EOF + # 2017-09, debian closed the bug on this saying upstream had fixed it. + # remove this when i\'m using the newer package, ie, debian 10, or maybe + # ubuntu 18.04. + cat >/etc/systemd/system/spamddnsfix.timer <<'EOF' +[Unit] +Description=run spamd bug fix script every 10 minutes + +[Timer] +OnActiveSec=60 +# the script looks back 9 minutes into the journal, +# it takes a second to run, +# so lets run every 9 minutes and 10 seconds. +OnUnitActiveSec=550 + +[Install] +WantedBy=timers.target +EOF + m systemctl daemon-reload + m systemctl restart spamddnsfix.timer + m systemctl enable spamddnsfix.timer + +fi # [[ $HOSTNAME != "$MAIL_HOST" ]] +##### end spamassassin config -pi openvpn +# * Update mail cert if [[ -e /p/c/filesystem ]]; then # allow failure of these commands when our internet is down, they are likely not needed, # we check that a valid cert is there already. @@ -209,40 +288,159 @@ if [[ -e /p/c/filesystem ]]; then # systemd, buuut it can remake the tun device unexpectedly, i got this in the log # after my internet was down for a bit: # NOTE: Pulled options changed on restart, will need to close and reopen TUN/TAP device. - /a/exe/vpn-mk-client-cert -b mail -n mail -s /b/ds/mail-route li.iankelling.org + m /a/exe/vpn-mk-client-cert -b mail -n mail -s /b/ds/mail-route li.iankelling.org fi fi -cat >/etc/systemd/system/mailclean.timer <<'EOF' -[Unit] -Description=Run mailclean daily -[Timer] -OnCalendar=monthly +f=/usr/local/bin/mail-cert-cron +cat >$f <<'EOF' +#!/bin/bash +set -eE -o pipefail +trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR -[Install] -WantedBy=timers.target +[[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@" + +f=/a/bin/bash_unpublished/source-state +if [[ -e $f ]]; then + source $f +fi +if [[ $HOSTNAME == "$MAIL_HOST" ]]; then + local_mx=mail.iankelling.org + rsync_common="rsync -ogtL --chown=root:Debian-exim --chmod=640 root@li.iankelling.org:/etc/letsencrypt/live/$local_mx/" + ${rsync_common}fullchain.pem /etc/exim4/exim.crt + ret=$? + ${rsync_common}privkey.pem /etc/exim4/exim.key + new_ret=$? + if [[ $ret != $new_ret ]]; then + echo "$0: error: differing rsync returns, $ret, $new_ret" + exit 1 + fi +fi +if [[ $new_ret != 0 ]]; then + if ! openssl x509 -checkend $(( 60 * 60 * 24 * 3 )) -noout -in /etc/exim4/exim.crt; then + echo "$0: error!: cert rsync failed and it will expire in less than 3 days" + exit 1 + fi +fi +exit 0 EOF +m chmod 755 $f -cat >/etc/systemd/system/mailclean.service </etc/systemd/system/mailcert.service <<'EOF' [Unit] -Description=Delete and archive old mail files +Description=Mail cert rsync After=multi-user.target [Service] -User=$u Type=oneshot -ExecStart=/a/bin/log-quiet/sysd-mail-once mailclean /a/bin/distro-setup/mailclean +ExecStart=/a/bin/log-quiet/sysd-mail-once mailcert /usr/local/bin/mail-cert-cron EOF -systemctl daemon-reload +cat >/etc/systemd/system/mailcert.timer <<'EOF' +[Unit] +Description=Run mail-cert once a day + +[Timer] +OnCalendar=daily + +[Install] +WantedBy=timers.target +EOF +m systemctl daemon-reload +m systemctl start mailcert +m systemctl restart mailcert.timer +m systemctl enable mailcert.timer + +# * common exim4 config source /a/bin/bash_unpublished/source-state -mkdir -p /etc/exim4/conf.d/{main,transport,auth,router} -cat >/etc/exim4/rcpt_local_acl <<'EOF' + +### make local bounces go to normal maildir +# local mail that bounces goes to /Maildir or /root/Maildir +dirs=(/m/md/bounces/{cur,tmp,new}) +m mkdir -p ${dirs[@]} +m chown iank:iank /m /m/md +m ln -sfT /m/md /m/iank +m chmod 700 /m /m/md +m chown -R $u:Debian-exim /m/md/bounces +m chmod 775 ${dirs[@]} +m usermod -a -G Debian-exim $u +for d in /Maildir /root/Maildir; do + if [[ ! -L $d ]]; then + m rm -rf $d + fi + m ln -sf -T /m/md/bounces $d +done + + +# by default, only 10 days of logs are kept. increase that. +m sed -ri 's/^(\s*rotate\s).*/\11000/' /etc/logrotate.d/exim4-base + + +## https://blog.dhampir.no/content/make-exim4-on-debian-respect-forward-and-etcaliases-when-using-a-smarthost +# i only need .forwards, so just doing that one. +cd /etc/exim4/conf.d/router +b=userforward_higher_priority +# replace the router name so it is unique +sed -r s/^\\S+:/$b:/ 600_exim4-config_userforward >175_$b + + +rm -vf /etc/exim4/conf.d/main/000_localmacros # old filename +cat >/etc/exim4/conf.d/main/000_local </etc/exim4/conf.d/rcpt_local_acl <<'EOF' # Only hosts we control send to @mail.iankelling.org, so make sure # they are all authed. # Note, if we wanted authed senders for all domains, @@ -252,7 +450,8 @@ deny !authenticated = * domains = mail.iankelling.org EOF -cat >/etc/exim4/data_local_acl <<'EOF' +rm -fv /etc/exim4/data_local_acl # old path +cat >/etc/exim4/conf.d/data_local_acl <<'EOF' # Except for the "condition =", this was # a comment in the check_data acl. The comment about this not # being suitable is mostly bs. The only thing related I found was to @@ -338,74 +537,6 @@ fsfsmarthost: EOF -#### begin mail cert setup ### -f=/usr/local/bin/mail-cert-cron -cat >$f <<'EOF' -#!/bin/bash -set -eE -o pipefail -trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR - -[[ $EUID == 0 ]] || exec sudo "$BASH_SOURCE" "$@" - -f=/a/bin/bash_unpublished/source-state -if [[ -e $f ]]; then - source $f -fi -if [[ $HOSTNAME == "$MAIL_HOST" ]]; then - local_mx=mail.iankelling.org - rsync_common="rsync -ogtL --chown=root:Debian-exim --chmod=640 root@li.iankelling.org:/etc/letsencrypt/live/$local_mx/" - ${rsync_common}fullchain.pem /etc/exim4/exim.crt - ret=$? - ${rsync_common}privkey.pem /etc/exim4/exim.key - new_ret=$? - if [[ $ret != $new_ret ]]; then - echo "$0: error: differing rsync returns, $ret, $new_ret" - exit 1 - fi -fi -if [[ $new_ret != 0 ]]; then - if ! openssl x509 -checkend $(( 60 * 60 * 24 * 3 )) -noout -in /etc/exim4/exim.crt; then - echo "$0: error!: cert rsync failed and it will expire in less than 3 days" - exit 1 - fi -fi -exit 0 -EOF -chmod 755 $f - -cat >/etc/systemd/system/mailcert.service <<'EOF' -[Unit] -Description=Mail cert rsync -After=multi-user.target - -[Service] -Type=oneshot -ExecStart=/a/bin/log-quiet/sysd-mail-once mailcert /usr/local/bin/mail-cert-cron -EOF - -cat >/etc/systemd/system/mailcert.timer <<'EOF' -[Unit] -Description=Run mail-cert once a day - -[Timer] -OnCalendar=daily - -[Install] -WantedBy=timers.target -EOF -systemctl daemon-reload -systemctl start mailcert -systemctl restart mailcert.timer -systemctl enable mailcert.timer - -# This symlink is only here to so I can use the -# fsf mailman ansible role and trick its cert script -# into doing nothing. -/a/exe/lnf -T /etc/exim4/exim.crt /etc/letsencrypt/live/$(hostname -f)/fullchain.pem - -##### end mailcert setup ##### - -# comon stuff cat >/etc/exim4/update-exim4.conf.conf <<'EOF' # default stuff, i havent checked if its needed dc_minimaldns='false' @@ -417,170 +548,37 @@ dc_mailname_in_oh='true' EOF -if [[ $HOSTNAME == "$MAIL_HOST" ]]; then - - # mail.iankelling.org so local imap clients can connect with tls and - # when they happen to not be local. - sed -ri -f - /etc/hosts <<'EOF' -/^127\.0\.1\.1.* mail\.iankelling\.org\b/{p;d} -/^127\.0\.1\.1 /s/ *$/ mail.iankelling.org/ -EOF - /a/exe/cedit mail /etc/dnsmasq-servers.conf <<'EOF' || [[ $? == 1 ]] -server=/mail.iankelling.org/127.0.1.1 -EOF - systemctl reload dnsmasq - - # I used to use debconf-set-selections + dpkg-reconfigure, - # which then updates this file - # but the process is slower than updating it directly and then I want to set other things in - # update-exim4.conf.conf, so there's no point. - # The file is documented in man update-exim4.conf, - # except the man page is not perfect, read the bash script to be sure about things. - - # The debconf questions output is additional documentation that is not - # easily accessible, but super long, along with the initial default comment in this - # file, so I've saved that into ./mail-notes.conf. - - cat >>/etc/exim4/update-exim4.conf.conf < /etc/mailname - - # MAIN_HARDCODE_PRIMARY_HOSTNAME might mess up the - # smarthost config type, not sure. all other settings - # would be unused in that config type. - rm -f /etc/exim4/conf.d/main/000_localmacros # old filename - cat >/etc/exim4/conf.d/main/000_local <$f <<'EOF' -#!/bin/bash -cd /etc -wget -q -N https://publicsuffix.org/list/public_suffix_list.dat -EOF - chmod 755 $f - - sed -i --follow-symlinks -f - /etc/aliases <$d/override.conf <<'EOF' -[Service] -Restart=always -# time to sleep before restarting a service -RestartSec=1 -[Unit] -# StartLimitIntervalSec in recent systemd versions -StartLimitInterval=0 -EOF +# * if MAIL_HOST +case $HOSTNAME in + $MAIL_HOST) + dovecot-setup + # ** exim - systemctl enable mailclean.timer - systemctl start mailclean.timer - systemctl restart $vpn_ser@mail - systemctl enable $vpn_ser@mail - systemctl enable dovecot - systemctl restart dovecot + sudo rsync -ahhi --chown=root:Debian-exim --chmod=0640 \ + /p/c/filesystem/etc/exim4/passwd /p/c/filesystem/etc/exim4/*.pem /etc/exim4/ -else # $HOSTNAME != $MAIL_HOST - # remove mail. 2 lines to properly remove whitespace - sed -ri -f - /etc/hosts <<'EOF' -s#^(127\.0\.1\.1 .*) +mail\.iankelling\.org$#\1# -s#^(127\.0\.1\.1 .*)mail\.iankelling\.org +(.*)#\1\2# + + # mail.iankelling.org so local imap clients can connect with tls and + # when they happen to not be local. + sed -ri -f - /etc/hosts <<'EOF' +/^127\.0\.1\.1.* mail\.iankelling\.org\b/{p;d} +/^127\.0\.1\.1 /s/ *$/ mail.iankelling.org/ EOF + /a/exe/cedit mail /etc/dnsmasq-servers.conf <<'EOF' || [[ $? == 1 ]] +server=/mail.iankelling.org/127.0.1.1 +EOF + if systemctl is-active dnsmasq >/dev/null; then + m systemctl restart dnsmasq + m nscd -i hosts + fi - echo | /a/exe/cedit mail /etc/dnsmasq-servers.conf || [[ $? == 1 ]] - systemctl reload dnsmasq + # I used to use debconf-set-selections + dpkg-reconfigure, + # which then updates this file + # but the process is slower than updating it directly and then I want to set other things in + # update-exim4.conf.conf, so there's no point. + # The file is documented in man update-exim4.conf, + # except the man page is not perfect, read the bash script to be sure about things. - systemctl disable mailclean.timer &>/dev/null ||: - systemctl stop mailclean.timer &>/dev/null ||: - systemctl disable $vpn_ser@mail - systemctl stop $vpn_ser@mail - systemctl disable dovecot ||: - systemctl stop dovecot ||: - # - # - # would only exist because I wrote it i the previous condition, - # it\'s not part of exim - rm -f /etc/exim4/conf.d/main/000_localmacros - cat >>/etc/exim4/update-exim4.conf.conf < /etc/mailname + cat >>/etc/exim4/update-exim4.conf.conf < /etc/mailname + # MAIN_HARDCODE_PRIMARY_HOSTNAME might mess up the + # smarthost config type, not sure. all other settings + # would be unused in that config type. + cat >>/etc/exim4/conf.d/main/000_local <>/etc/default/spamassassin -# just noticed this in the config file, seems like a good idea. -sed -i '/^\s*NICE\s*=/d' /etc/default/spamassassin -e 'NICE="--nicelevel 15"' >>/etc/default/spamassassin -systemctl start spamassassin -systemctl reload spamassassin -cat >/etc/systemd/system/spamddnsfix.service <<'EOF' -[Unit] -Description=spamd dns bug fix cronjob +# failing message on mail-tester.com: +# We check if there is a server (A Record) behind your hostname kd. +# You may want to publish a DNS record (A type) for the hostname kd or use a different hostname in your mail software +# https://serverfault.com/questions/46545/how-do-i-change-exim4s-primary-hostname-on-a-debian-box +# and this one seemed appropriate from grepping config. +# I originally set this to li.iankelling.org, but then ended up with errors when li tried to send +# mail to kd, so this should basically be a name that no host has as their +# canonical hostname since the actual host sits behind a nat and changes. +# Seems logical for this to be the same as mailname. +MAIN_HARDCODE_PRIMARY_HOSTNAME = mail.iankelling.org -[Service] -Type=oneshot -ExecStart=/a/bin/distro-setup/spamd-dns-fix -EOF -# 2017-09, debian closed the bug on this saying upstream had fixed it. -# remove this when i\'m using the newer package, ie, debian 10, or maybe -# ubuntu 18.04. -cat >/etc/systemd/system/spamddnsfix.timer <<'EOF' -[Unit] -Description=run spamd bug fix script every 10 minutes +# options exim has to avoid having to alter the default config files +CHECK_RCPT_LOCAL_ACL_FILE = /etc/exim4/conf.d/rcpt_local_acl +CHECK_DATA_LOCAL_ACL_FILE = /etc/exim4/conf.d/data_local_acl -[Timer] -OnActiveSec=60 -# the script looks back 9 minutes into the journal, -# it takes a second to run, -# so lets run every 9 minutes and 10 seconds. -OnUnitActiveSec=550 -[Install] -WantedBy=timers.target +# recommended if dns is expected to work +CHECK_RCPT_VERIFY_SENDER = true +# seems like a good idea +CHECK_DATA_VERIFY_HEADER_SENDER = true +CHECK_RCPT_SPF = true +CHECK_RCPT_REVERSE_DNS = true +CHECK_MAIL_HELO_ISSUED = true + +# testing dmarc +#dmarc_tld_file = /etc/public_suffix_list.dat EOF -systemctl daemon-reload -systemctl restart spamddnsfix.timer -systemctl enable spamddnsfix.timer -# -##### end spamassassin config + f=/etc/cron.daily/refresh-dmarc-tld-file + cat >$f <<'EOF' +#!/bin/bash +cd /etc +wget -q -N https://publicsuffix.org/list/public_suffix_list.dat +EOF + m chmod 755 $f + sed -i --follow-symlinks -f - /etc/aliases <$d/override.conf <<'EOF' +[Service] +Restart=always +# time to sleep before restarting a service +RestartSec=1 -# https://blog.dhampir.no/content/make-exim4-on-debian-respect-forward-and-etcaliases-when-using-a-smarthost -# i only need .forwards, so just doing that one. -cd /etc/exim4/conf.d/router -b=userforward_higher_priority -# replace the router name so it is unique -sed -r s/^\\S+:/$b:/ 600_exim4-config_userforward >175_$b +[Unit] +# StartLimitIntervalSec in recent systemd versions +StartLimitInterval=0 +EOF + if ! systemctl cat openvpn@mail.service|grep -xF StartLimitInterval=0 &>/dev/null; then + # needed for the above config to go into effect + m systemctl daemon-reexec + fi -# begin setup passwd.client -f=/etc/exim4/passwd.client -rm -f /etc/exim4/passwd.client -install -m 640 -g Debian-exim /dev/null $f -while read -r domain _ pass; do - # reference: exim4_passwd_client(5) - printf "%s:%s\n" "$domain" "$pass" >>$f -done /dev/null; then + m nscd -i hosts + m systemctl restart dnsmasq # reload does not ensure new config is used + fi + m systemctl disable mailclean.timer &>/dev/null ||: + m systemctl stop mailclean.timer &>/dev/null ||: + m systemctl disable $vpn_ser@mail + m systemctl stop $vpn_ser@mail + # + # + # would only exist because I wrote it i the previous condition, + # it\'s not part of exim + rm -fv /etc/exim4/conf.d/main/000_localmacros + cat >>/etc/exim4/update-exim4.conf.conf </etc/mailname -# /etc/alias setup is debian specific, and exim postinst script sets up -# an /etc/alias from root to the postmaster, based on the question -# exim4-config exim4/dc_postmaster, as long as there exists an entry for -# root, or there was no preexisting aliases file. postfix won\'t set up -# a root to $postmaster alias if it\'s already installed. Easiest to -# just set it ourselves. + ;;& + ## we use this host to monitor MAIL_HOST + l2) + dovecot-setup + m systemctl enable dovecot + m systemctl restart dovecot + cat >>/etc/exim4/update-exim4.conf.conf <>/etc/exim4/update-exim4.conf.conf <> /etc/fstab + echo "/nocow/exim4 /var/spool/exim4 none bind 0 0" >>/etc/fstab fi if ! mountpoint -q $sdir; then - systemctl stop exim4 + m systemctl stop exim4 if [[ -L $sdir ]]; then - rm $sdir + m rm $sdir fi if [[ ! -e $dir && -d $sdir ]]; then - mv $sdir $dir + m mv $sdir $dir fi if [[ ! -d $sdir ]]; then - mkdir $sdir - chmod 000 $sdir # only want it to be used when its mounted + m mkdir $sdir + m chmod 000 $sdir # only want it to be used when its mounted fi - mount $sdir + m mount $sdir fi fi -systemctl restart exim4 -systemctl enable exim4 +# ** exim/spool uid setup +# i have the spool directory be common to distro multi-boot, so +# we need the uid to be the same. 608 cuz it's kind of in the middle +# of the free system uids. +IFS=:; read -r _ _ uid _ < <(getent passwd Debian-exim ||:) ||:; unset IFS +IFS=:; read -r _ _ gid _ < <(getent group Debian-exim ||:) ||:; unset IFS +if [[ ! $uid ]]; then + # from /var/lib/dpkg/info/exim4-base.postinst, plus uid and gid options + m adduser --uid 608 --system --group --quiet --home /var/spool/exim4 \ + --no-create-home --disabled-login --force-badname Debian-exim +elif [[ $uid != 608 ]]; then + m systemctl stop exim4 ||: + m usermod -u 608 Debian-exim + m groupmod -g 608 Debian-exim + m usermod -g 608 Debian-exim + m find / /nocow -xdev -uid $uid -exec chown -h 608 {} + + m find / /nocow -xdev -gid $gid -exec chgrp -h 608 {} + +fi -if [[ $HOSTNAME == "$MAIL_HOST" ]]; then - f=/usr/local/bin/send-test-forward - cat >$f <<'EOF' -#!/bin/bash -echo body_test | mail -s "primary_test $(date +%s) $(date +%Y-%m-%dT%H:%M:%S%z)" iank@posteo.de -EOF - chmod +x $f - cat >/etc/cron.d/mailtest <&1 | /usr/local/bin/log-once send-test-forward -*/10 * * * * $u /usr/local/bin/mailtest-check 2>&1 | /usr/local/bin/log-once -1 send-test-forward -*/10 * * * * root chmod -R g+rw /m/md/bounces 2>&1 | /usr/local/bin/log-once -1 bounces-chmod -EOF - cp /a/bin/distro-setup/filesystem/usr/local/bin/mailtest-check /usr/local/bin + +# * reload exim + +if systemctl is-active exim4 >/dev/null; then + m systemctl reload exim4 else - rm -f /etc/cron.d/mailtest + m systemctl start exim4 fi -# MAIL_HOST also does radicale, and easier to start and stop it here -# for when MAIL_HOST changes, so radicale gets the synced files and -# does not stop us from remounting /o. -if dpkg -s radicale &>/dev/null; then - if [[ $HOSTNAME == "$MAIL_HOST" ]]; then - systemctl restart radicale - systemctl enable radicale - if [[ -e /etc/logrotate.d/radicale.disabled ]]; then - mv /etc/logrotate.d/radicale{.disabled,} - fi - else - systemctl stop radicale - systemctl disable radicale - # weekly logrotate tries to restart radicale even if it's a disabled service in flidas. - if [[ -e /etc/logrotate.d/radicale ]]; then - mv /etc/logrotate.d/radicale{,.disabled} - fi - fi -fi + +# * mail monitoring / testing + +case $HOSTNAME in + $MAIL_HOST|l2) + # note: cronjob "ian" also does some important monitoring + cat >/etc/cron.d/mailtest <>/etc/cron.d/mailtest </usr/local/bin/send-test-forward <