install_update_dovecot-2.4.sh: fix error writing (mysql) 'auth-sql.conf.ext' file.

BAK/install_opendkim.sh.Pre-Queue.00

@@ -0,0 +1,684 @@
+#!/usr/bin/env bash
+
+clear
+echo -e "\n   \033[32mStart Installation of OpenDKIM..\033[m"
+
+
+
+# -------------
+# - Settings
+# -------------
+
+#_src_base_dir="$(realpath $(dirname $0))"
+#conf_file="${_src_base_dir}/conf/install_opendkim.conf"
+
+log_file="$(mktemp)"
+
+backup_date="$(date +%Y-%m-%d-%H%M)"
+
+_opendkim_packages="opendkim opendkim-tools"
+
+opendkim_base_dir="/etc/opendkim"
+opendkim_key_dir="${opendkim_base_dir}/keys"
+opendkim_conf_file="/etc/opendkim.conf"
+
+postfix_spool_dir="/var/spool/postfix"
+
+opendkim_socket_dir="${postfix_spool_dir}/opendkim"
+opendkim_socket_file="${opendkim_socket_dir}/opendkim.sock"
+
+postfix_needs_restart=false
+opendkim_needs_restart=false
+
+
+# -------------
+# --- Some functions
+# -------------
+echononl(){
+   echo X\\c > /tmp/shprompt$$
+   if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
+      echo -e -n "$*\\c" 1>&2
+   else
+       echo -e -n "$*" 1>&2
+   fi
+   rm /tmp/shprompt$$
+}
+
+fatal(){
+   echo ""
+   echo -e "fatal error: $*"
+   echo ""
+   echo -e "\t\033[31m\033[1mInstalllation will be interrupted\033[m\033[m"
+   echo ""
+   exit 1
+}
+
+error(){
+   echo ""
+   echo -e "\t[ \033[31m\033[1mFehler\033[m ]: $*"
+   echo ""
+}
+
+warn (){
+   echo ""
+   echo -e "\t[ \033[33m\033[1mWarning\033[m ]: $*"
+   echo ""
+}
+
+info (){
+   echo ""
+   echo -e "\t[ \033[32m\033[1mInfo\033[m ]: $*"
+   echo ""
+}
+
+echo_done() {
+   echo -e "\033[80G[ \033[32mdone\033[m ]"
+}
+echo_ok() {
+   echo -e "\033[80G[ \033[32mok\033[m ]"
+}
+echo_warning() {
+   echo -e "\033[80G[ \033[33m\033[1mwarn\033[m ]"
+}
+echo_failed(){
+   echo -e "\033[80G[ \033[1;31mfailed\033[m ]"
+}
+echo_skipped() {
+   echo -e "\033[80G[ \033[37mskipped\033[m ]"
+}
+
+
+# -------------
+# - Some pre-installation tasks
+# -------------
+
+# - Is 'systemd' supported on this system
+# -
+SYSTEMD_EXISTS=false
+systemd=$(which systemd)
+systemctl=$(which systemctl)
+
+if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
+   SYSTEMD_EXISTS=true
+fi
+
+
+
+# =============
+# - Start Installation
+# =============
+
+echo ""
+
+# - Synchronise package index files with the repository
+# -
+echononl "   Synchronise package index files with the repository.."
+apt-get update > "$log_file" 2>&1
+if [[ $? -eq 0 ]] ; then
+   echo_ok
+else
+   echo_failed
+   error "$(cat $log_file)"
+fi
+
+
+# - Install OpenDKIM
+# -
+echononl "   Install needed debian packages.."
+opendkim_packages=""
+packages_installed=false
+for _pkg in $_opendkim_packages ; do
+   if aptitude search "$_pkg" | grep " $_pkg " | grep -e "^i" > /dev/null 2>&1 ; then
+      continue
+   else
+      opendkim_packages="$opendkim_packages $_pkg"
+   fi
+done
+if [[ -n "$opendkim_packages" ]]; then
+   DEBIAN_FRONTEND=noninteractive apt-get -y install $opendkim_packages > /dev/null 2> "$log_file"
+   packages_installed=true
+   opendkim_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+
+# - Add user 'postfix' to group 'opendkim'
+# -
+echononl "   Add user 'postfix' to group 'opendkim'.."
+if grep opendkim /etc/group | grep -q postfix 2> /dev/null ; then
+   echo_skipped
+else
+   adduser postfix opendkim > "$log_file" 2>&1
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+
+
+# - Save configuration file from distribution
+# -
+echononl "   Save configuration file from distribution"
+if $packages_installed ; then
+   cp -a $opendkim_conf_file $opendkim_conf_file.ORIG 2> "$log_file"
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+echononl "   Backup existing file '${opendkim_conf_file}'.."
+if [[ -f "${opendkim_conf_file}" ]] ; then
+   mv "${opendkim_conf_file}" "${opendkim_conf_file}.${backup_date}"
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+# - Create OpenDKIM configuration
+# -
+echononl "   Create OpenDKIM configuration"
+if [[ -f "$opendkim_conf_file" ]] \
+      && grep -i -q -E "^\s*Socket\s+local:$opendkim_socket_file" "$opendkim_conf_file" \
+      && grep -i -q -E "^\s*SigningTable.*${opendkim_base_dir}/signing.table" "$opendkim_conf_file" \
+      && grep -i -q -E "^\s*KeyTable.*${opendkim_base_dir}/key.table" "$opendkim_conf_file" ; then
+   echo_skipped
+   warn "OpenDKIM seems already be configured."
+else
+   cat <<EOF > $opendkim_conf_file 2> $log_file
+# Datei $opendkim_conf_file
+
+# Sets the "authserv-id" to use when generating the Authentication-Results:
+# header field after verifying a message. The default is to use the name of
+# the MTA processing the message. If the string "HOSTNAME" is provided, the
+# name of the host running the filter (as returned by the gethostname(3)
+# function) will be used.
+AuthservID              "DKIM check $(hostname -f)"
+
+# OpenDKIM agiert als Mail Filter (= Milter) in den
+# Modi signer (s) und verifier (v) und verwendet eine
+# Socket-Datei zur Kommunikation (alternativ: lokaler Port)
+Mode                    sv
+
+# Socket                local:/var/run/opendkim/opendkim.sock
+# Socket                local:$opendkim_socket_file
+# Socket                inet:12345@localhost
+Socket                  local:$opendkim_socket_file
+
+# OpenDKIM verwendet diesen Benutzer bzw.
+# diese Gruppe
+UserID                  opendkim:opendkim
+UMask                   002
+PidFile                 /var/run/opendkim/opendkim.pid
+
+# OpenDKIM bei Problemen neustarten,
+# aber max. 10 mal pro Stunde
+AutoRestart             yes
+AutoRestartRate         10/1h
+
+# Logging (wenn alles funktioniert eventuell reduzieren)
+Syslog                  yes
+SyslogSuccess           yes
+LogWhy                  yes
+
+# Verfahren, wie Header und Body durch
+# OpenDKIM verarbeitet werden sollen.
+Canonicalization        relaxed/simple
+
+# interne Mails nicht mit OpenDKIM verarbeiten
+ExternalIgnoreList      refile:${opendkim_base_dir}/trusted
+InternalHosts           refile:${opendkim_base_dir}/trusted
+
+# welche Verschlüsselungs-Keys sollen für welche
+# Domains verwendet werden
+# (refile: für Dateien mit regulären Ausdrücke)
+SigningTable            refile:${opendkim_base_dir}/signing.table
+KeyTable                ${opendkim_base_dir}/key.table
+
+# diesen Signatur-Algorithmus verwenden
+SignatureAlgorithm      rsa-sha256
+
+# Always oversign From (sign using actual From and a null From to prevent
+# malicious signatures header fields (From and/or others) between the signer
+# and the verifier.  From is oversigned by default in the Debian pacakge
+# because it is often the identity key used by reputation systems and thus
+# somewhat security sensitive.
+OversignHeaders         From
+
+# Add an "Authentication-Results:" header field even to unsigned messages
+# from domains with no "signs all" policy. The reported DKIM result will be
+# "none" in such cases. Normally unsigned mail from non-strict domains does
+# not cause the results header field to be added.
+AlwaysAddARHeader       yes
+
+# Causes opendkim to fork and exits immediately, leaving the service running
+# in the background. The default is "true".
+Background              yes
+
+# Sets the DNS timeout in seconds. A value of 0 causes an infinite wait. The
+# default is 5. Ignored if not using an asynchronous resolver package. See
+# also the NOTES section below.
+DNSTimeout              5
+EOF
+   opendkim_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+
+
+# - Assign ownership to the opendkim user and restrict tthe
+# - file permissions:
+# -
+echononl "   Assign ownership and file permissions.."
+chmod u=rw,go=r $opendkim_conf_file 2> $log_file
+if [[ $? -eq 0 ]] ; then
+   echo_ok
+else
+   echo_failed
+   error "$(cat $log_file)"
+fi
+
+
+# - Create the directories to hold OpenDKIM’s data files, assign 
+# - ownership to the opendkim user, and restrict the file 
+# - permissions:
+# -
+echononl "   Create directory '$opendkim_base_dir'"
+if [[ -d "$opendkim_base_dir" ]] ; then
+   echo_skipped
+else
+   opendkim_needs_restart=true
+   mkdir ${opendkim_base_dir} 2> $log_file
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+echononl "   Create directory '$opendkim_key_dir'"
+if [[ -d "$opendkim_key_dir" ]] ; then
+   echo_skipped
+else
+   opendkim_needs_restart=true
+   mkdir $opendkim_key_dir 2> $log_file
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+echononl "   Set ownership on directory '${opendkim_base_dir}' (recursive).."
+chown -R opendkim:opendkim ${opendkim_base_dir} 2> $log_file
+if [[ $? -eq 0 ]] ; then
+   echo_ok
+else
+   echo_failed
+   error "$(cat $log_file)"
+fi
+echononl "   Set file-permission on $opendkim_key_dir"
+chmod go-rw $opendkim_key_dir 2> $log_file
+if [[ $? -eq 0 ]] ; then
+   echo_ok
+else
+   echo_failed
+   error "$(cat $log_file)"
+fi
+
+
+# - Create empty files
+# -    ${opendkim_base_dir}/signing.table
+# -    ${opendkim_base_dir}/key.table
+# -
+echononl "   Create empty file '${opendkim_base_dir}/signing.table'.."
+if [[ -f "${opendkim_base_dir}/signing.table" ]] ; then
+   echo_skipped
+else
+   touch ${opendkim_base_dir}/signing.table 2> $log_file
+   opendkim_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+echononl "   Create empty file '${opendkim_base_dir}/key.table'.."
+if [[ -f "${opendkim_base_dir}/key.table" ]] ; then
+   echo_skipped
+else
+   touch ${opendkim_base_dir}/key.table 2> $log_file
+   opendkim_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+
+
+# - Create the trusted hosts file ${opendkim_base_dir}/trusted.hosts.
+# -
+echononl "   Create trusted hosts file '${opendkim_base_dir}/trusted'.."
+if [[ -f "${opendkim_base_dir}/trusted" ]] ; then
+   echo_skipped
+else
+   cat <<EOF > ${opendkim_base_dir}/trusted 2> $log_file
+127.0.0.1
+::1
+localhost
+$(hostname -f)
+EOF
+   opendkim_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+
+
+# - Create the OpenDKIM socket directory in Postfix’s work area 
+# - and make sure it has the correct ownership:
+# -
+echononl "   Create the OpenDKIM socket directory in Postfix’s work area.."
+if [[ -d "${postfix_spool_dir}/opendkim" ]] ; then
+   echo_skipped
+else
+   mkdir ${postfix_spool_dir}/opendkim 2> $log_file
+   opendkim_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+   echononl "   Set ownership on directory '${postfix_spool_dir}/opendkim'.."
+   chown opendkim:postfix ${postfix_spool_dir}/opendkim 2> $log_file
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+
+
+# - Edit /etc/default/opendkim
+# -
+# - Set:
+# -    SOCKET="local:${postfix_spool_dir}/opendkim/opendkim.sock"
+# -
+echononl "   Set 'SOCKET' at file /etc/default/opendkim.."
+if grep -q -E "^\s*SOCKET" /etc/default/opendkim 2>/dev/null ; then
+   if grep -q -E "^\s*SOCKET.*local:$opendkim_socket_file" /etc/default/opendkim  2>/dev/null ; then
+      echo_skipped
+   else
+      perl -i -n -p -e "s#^\s*SOCKET=.*#SOCKET=\"local:$opendkim_socket_file\"#" /etc/default/opendkim 2> $log_file
+      opendkim_needs_restart=true
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   fi
+else
+   cat <<EOF >>/etc/default/opendkim 2> $log_file
+SOCKET="local:$opendkim_socket_file"
+EOF
+   opendkim_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+
+
+# - Edit /etc/postfix/main.cf and add a section to activate 
+# - processing of e-mail through the OpenDKIM daemon:
+# -
+backup_date="$(date +%Y-%m-%d-%H%M)"
+echononl "   Backup existing postfix configuration (main.cf).."
+cp -a /etc/postfix/main.cf /etc/postfix/main.cf.$backup_date 2> $log_file
+if [[ $? -eq 0 ]] ; then
+   echo_ok
+else
+   echo_failed
+   error "$(cat $log_file)"
+fi
+
+echononl "   Activate processing of e-mail through the OpenDKIM daemon.."
+if grep -q -E "milter_default_action\s*=\s*accept" /etc/postfix/main.cf ; then
+   echo_skipped
+   warn "Postfix (main.cf) seems already be configured for milters"
+   echononl "   Delete previosly saved Postfix configuration.."
+   rm /etc/postfix/main.cf.$backup_date 2> $log_file
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   cat <<EOF >> /etc/postfix/main.cf 2> $log_file
+
+# ======= Milter configuration =======
+
+# OpenDKIM
+
+milter_default_action = accept
+
+# Postfix ≥ 2.6 milter_protocol = 6, Postfix ≤ 2.5 milter_protocol = 2
+milter_protocol = 6
+
+# Note:
+#    We will sign AFTER sending through AmaVIS, just befor sending out. So
+#    set 'smtpd_milters =' to an emty string here and add to localhost:10025
+#    section in master.cf: 'smtpd_milters=local:/opendkim/opendkim.sock'
+#
+#    If you want sign mails before sending through AmaVIS, set
+#    'smtpd_milters = local:/opendkim/opendkim.sock' here and add to
+#    localhost:10025 section in master.cf: 'smtpd_milters='
+#
+#smtpd_milters = local:/opendkim/opendkim.sock
+smtpd_milters =
+
+# Was sind non_smtpd_milters?
+#
+# non_smtpd_milters gilt für alle Postfix-Prozesse, die Mails verarbeiten, aber NICHT
+# der smtpd-Daemon sind.
+#
+# Das betrifft z. B.:
+#
+#     cleanup        Header/Content-Bereinigung
+#     qmgr           Queue-Manager
+#     lmtp / smtp    Auslieferung nach extern
+#     local          lokale Zustellung
+#
+# Das sind z. B.:
+#
+#     -  interne Bounces (MAILER-DAEMON)
+#
+#     -  Cron-Mails vom Server
+#
+#     -  Weiterleitungen, die Postfix selbst generiert
+#
+#     -  Mails, die über sendmail CLI gesendet werden
+#
+#     -  Mails, die Amavis über LMTP zurückgibt
+#
+#     -  etc.
+#
+#
+# DKIM soll auch die ausgehenden Mails signieren, die nicht über smtpd daemon versendet werden.
+non_smtpd_milters = local:/opendkim/opendkim.sock
+EOF
+   postfix_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+
+
+# - Prevent Postfix from setting the DKIM Header twice (one befor
+# - and one after processing amavis
+# -
+# - To disable milter processing after amavis, add to your master.cf in 
+# - the after-amavis section:
+# -    127.0.0.1:10025 inet    n       -       -       -       -       smtpd
+# -       [...]
+# -       -o smtpd_milters=
+# -
+# - If you want to run the milter after amavis, set in main.cf
+# -    smtpd_milters= 
+# - to an empty string and add the smtpd_milters configuration to master.cf 
+# - (after-section amavis) instead:
+# -    -o smtpd_milters=local:/opendkim/opendkim.sock
+# -
+echononl "   Backup file '/etc/postfix/master.cf'.."
+cp -a /etc/postfix/master.cf /etc/postfix/master.cf.$backup_date 2> $log_file
+if [[ $? -eq 0 ]] ; then
+   echo_ok
+else
+   echo_failed
+   error "$(cat $log_file)"
+fi
+echononl "   Adjust /etc/postfix/master.cf. Set DKIM after sending throuh AmaVIS.."
+_found=false
+_changed=false
+tmp_master_file="/tmp/postfix_master.cf"
+> $tmp_master_file
+while IFS='' read -r _line || [[ -n $_line ]] ; do
+
+   if $_found && ! echo "$_line" | grep -i -q -E "^\s*-o" 2> /dev/null ; then
+      echo "   -o smtpd_milters=local:/opendkim/opendkim.sock" >> "$tmp_master_file"
+      _changed=true
+      _found=false
+   fi
+
+   if $_found && echo "$_line" | grep -i -q -E "^\s*-o\s+smtpd_milters=\s*" ; then
+      _found=false
+      if ! echo "$_line" | grep -i -q -E "^\s*-o\s+smtpd_milters=\s*local:/opendkim/opendkim.sock\s*$" ; then
+         echo "   -o smtpd_milters=local:/opendkim/opendkim.sock" >> "$tmp_master_file"
+         _changed=true
+         continue
+      fi
+   fi
+
+   if echo "$_line" | grep -i -q -E "^\s*(submission|smtps)\s+inet\s+" 2> /dev/null ; then
+      _found=true
+   fi
+
+   echo "$_line" >> "$tmp_master_file"
+
+done < "/etc/postfix/master.cf"
+if $_changed ; then
+   cp $tmp_master_file /etc/postfix/master.cf 2> $log_file
+   postfix_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+   info "Postfix (master.cf) was not changed - seems already be configured right."
+   echononl "   Delete previosly saved file '/etc/postfix/master.cf'.."
+   rm /etc/postfix/master.cf.$backup_date 2> $log_file
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+rm -f $tmp_master_file
+
+echo ""
+
+# - Restart OpenDKIM
+# - 
+echononl "   Restart OpenDKIM.."
+if $opendkim_needs_restart ; then
+   if $SYSTEMD_EXISTS ; then
+      systemctl restart opendkim > $log_file 2>&1
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   else
+      /etc/init.d/opendkim restart > $log_file 2>&1
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   fi
+else
+   echo_skipped
+fi
+
+
+# - Restart Postfix so it starts using OpenDKIM when processing mail:
+# -
+echononl "   Restart Postfix.."
+if $postfix_needs_restart ; then
+   if $SYSTEMD_EXISTS ; then
+      systemctl restart postfix > $log_file 2>&1
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   else
+      /etc/init.d/postfix restart > $log_file 2>&1
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   fi
+else
+   echo_skipped
+fi
+
+echo ""
+rm -f "$log_file"
+exit 0

BAK/install_opendmarc.sh.Pre-Queue.00

@@ -0,0 +1,936 @@
+#!/usr/bin/env bash
+
+clear
+echo -e "\n   \033[32mStart Installation of OpenDMARC..\033[m"
+
+overwrite_config_files=true
+
+
+# -------------
+# - Settings
+# -------------
+
+#_src_base_dir="$(realpath $(dirname $0))"
+#conf_file="${_src_base_dir}/conf/install_opendmarc.conf"
+
+_opendmarc_packages="opendmarc"
+
+opendmarc_base_dir="/etc/opendmarc"
+opendmarc_conf_file="/etc/opendmarc.conf"
+
+postfix_spool_dir="/var/spool/postfix"
+
+opendmarc_socket_dir="${postfix_spool_dir}/opendmarc"
+opendmarc_socket_file="${opendmarc_socket_dir}/opendmarc.sock"
+
+config_file_name_value_parameters="
+   AuthservID|$(hostname -f)
+   TrustedAuthservIDs|$(hostname -f)
+   PidFile|/run/opendmarc/opendmarc.pid
+   RejectFailures|true
+   Syslog|true
+   SyslogFacility|mail
+   IgnoreHosts|${opendmarc_base_dir}/ignore.hosts
+   IgnoreMailFrom|${opendmarc_base_dir}/ignore.mailfrom
+   IgnoreAuthenticatedClients|true
+   RequiredHeaders|false
+   UMask|002
+   FailureReports|false
+   AutoRestart|true
+   HistoryFile|/run/opendmarc/opendmarc.dat
+   SPFIgnoreResults|false
+   SPFSelfValidate|true
+   Socket|${opendmarc_socket_file}
+"
+declare -a  config_file_name_value_parameter_arr=()
+for _conf in $config_file_name_value_parameters ; do
+   config_file_name_value_parameter_arr+=("$_conf")
+done
+
+postfix_needs_restart=false
+opendmarc_needs_restart=false
+
+backup_date="$(date +%Y-%m-%d-%H%M)"
+log_file="$(mktemp)"
+
+# -------------
+# --- Some functions
+# -------------
+echononl(){
+   echo X\\c > /tmp/shprompt$$
+   if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
+      echo -e -n "$*\\c" 1>&2
+   else
+       echo -e -n "$*" 1>&2
+   fi
+   rm /tmp/shprompt$$
+}
+
+fatal(){
+   echo ""
+   echo -e "fatal error: $*"
+   echo ""
+   echo -e "\t\033[31m\033[1mInstalllation will be interrupted\033[m\033[m"
+   echo ""
+   exit 1
+}
+
+error(){
+   echo ""
+   echo -e "\t[ \033[31m\033[1mFehler\033[m ]: $*"
+   echo ""
+}
+
+warn (){
+   echo ""
+   echo -e "\t[ \033[33m\033[1mWarning\033[m ]: $*"
+   echo ""
+}
+
+info (){
+   echo ""
+   echo -e "\t[ \033[32m\033[1mInfo\033[m ]: $*"
+   echo ""
+}
+
+echo_done() {
+   echo -e "\033[80G[ \033[32mdone\033[m ]"
+}
+echo_ok() {
+   echo -e "\033[80G[ \033[32mok\033[m ]"
+}
+echo_warning() {
+   echo -e "\033[80G[ \033[33m\033[1mwarn\033[m ]"
+}
+echo_failed(){
+   echo -e "\033[80G[ \033[1;31mfailed\033[m ]"
+}
+echo_skipped() {
+   echo -e "\033[80G[ \033[37mskipped\033[m ]"
+}
+
+
+# -------------
+# - Some pre-installation tasks
+# -------------
+
+# - Is 'systemd' supported on this system
+# -
+SYSTEMD_EXISTS=false
+systemd=$(which systemd)
+systemctl=$(which systemctl)
+
+if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
+   SYSTEMD_EXISTS=true
+fi
+
+
+
+# =============
+# - Start Installation
+# =============
+
+echo ""
+
+# - Synchronise package index files with the repository
+# -
+echononl "   Synchronise package index files with the repository.."
+apt-get update > "$log_file" 2>&1
+if [[ $? -eq 0 ]] ; then
+   echo_ok
+else
+   echo_failed
+   error "$(cat $log_file)"
+fi
+
+
+# - Install opendmarc
+# -
+echononl "   Install needed debian packages.."
+opendmarc_packages=""
+packages_installed=false
+for _pkg in $_opendmarc_packages ; do
+   if aptitude search "$_pkg" | grep " $_pkg " | grep -e "^i" > /dev/null 2>&1 ; then
+      continue
+   else
+      opendmarc_packages="$opendmarc_packages $_pkg"
+   fi
+done
+if [[ -n "$opendmarc_packages" ]]; then
+   DEBIAN_FRONTEND=noninteractive apt-get -y install $opendmarc_packages > /dev/null 2> "$log_file"
+   packages_installed=true
+   opendmarc_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+
+# - Add user 'postfix' to group 'opendmarc'
+# -
+echononl "   Add user 'postfix' to group 'opendmarc'.."
+if grep -E "^opendmarc" /etc/group | grep -q postfix 2> /dev/null ; then
+   echo_skipped
+else
+   usermod -a -G opendmarc postfix > "$log_file" 2>&1
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+
+
+# - Add 'IgnoreHosts' with default value to the original opendmarc.conf file
+#
+echononl " Add 'IgnoreHosts' with default value to the opendmarc.conf file.."
+if ! $(grep -q -E "^IgnoreHosts\s+" ${opendmarc_conf_file} 2> /dev/null) ; then
+   cat << EOF >> ${opendmarc_conf_file}
+
+## Specifies the path to a file that contains a list of hostnames, IP addresses,
+## and/or CIDR expressions identifying hosts whose SMTP connections are to be
+## ignored by the filter. If not specified, defaults to "127.0.0.1" only.
+#
+IgnoreHosts 127.0.0.1
+
+# Optional - auch nach Absender-Domain ignorieren:
+IgnoreMailFrom ${opendmarc_base_dir}/ignore.mailfrom
+EOF
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+
+# - Add 'IgnoreAuthenticatedClients' with default value to the original opendmarc.conf file
+#
+_param="IgnoreAuthenticatedClients"
+echononl " Add '${_param}' with default value to the opendmarc.conf file.."
+if ! $(grep -q -E "^${_param}\s+" ${opendmarc_conf_file} 2> /dev/null) ; then
+   cat << EOF >> ${opendmarc_conf_file}
+
+## If set, causes mail from authenticated clients (i.e., those that used
+## SMTP AUTH) to be ignored by the filter. The default is "false".
+#
+IgnoreAuthenticatedClients false
+EOF
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+
+# - Add 'TrustedAuthservIDs' with default value to the original opendmarc.conf file
+#
+_param="TrustedAuthservIDs"
+echononl " Add '${_param}' with default value to the opendmarc.conf file.."
+if ! $(grep -q -E "^${_param}\s+" ${opendmarc_conf_file} 2> /dev/null) ; then
+   cat << EOF >> ${opendmarc_conf_file}
+
+# Provides a list of authserv-ids that are to be used to identify Authentication-Results
+# header fields whose contents are to be assumed as valid input for the DMARC assessment.
+# To provide a list, separate values by commas. If the string "HOSTNAME" is provided,
+# the name of the host running the filter (as returned by the gethostname(3) function)
+# will be used. Matching against this list is case-insensitive. The default is to use the
+# value of AuthservID.
+#
+TrustedAuthservIDs OpenDMARC
+EOF
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+
+# - Add 'RequiredHeaders' with default value to the original opendmarc.conf file
+#
+_param="IgnoreAuthenticatedClients"
+echononl " Add '${_param}' with default value to the opendmarc.conf file.."
+if ! $(grep -q -E "^${_param}\s+" ${opendmarc_conf_file} 2> /dev/null) ; then
+   cat << EOF >> ${opendmarc_conf_file}
+
+## If set, causes mail from authenticated clients (i.e., those that used
+## SMTP AUTH) to be ignored by the filter. The default is "false".
+#
+IgnoreAuthenticatedClients false
+EOF
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+
+# - Add 'RequiredHeaders' with default value to the original opendmarc.conf file
+#
+_param="RequiredHeaders"
+echononl " Add '${_param}' with default value to the opendmarc.conf file.."
+if ! $(grep -q -E "^${_param}\s+" ${opendmarc_conf_file} 2> /dev/null) ; then
+   cat << EOF >> ${opendmarc_conf_file}
+
+## If set, the filter will ensure the header of the message conforms to the basic
+## header field count restrictions laid out in RFC5322, Section 3.6. Messages
+## failing this test are rejected without further processing. A From: field from
+## which no domain name could be extracted will also be rejected.
+#
+RequiredHeaders false
+EOF
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+
+# - Add 'AutoRestart' with default value to the original opendmarc.conf file
+#
+_param="AutoRestart"
+echononl " Add '${_param}' with default value to the opendmarc.conf file.."
+if ! $(grep -q -E "^${_param}\s+" ${opendmarc_conf_file} 2> /dev/null) ; then
+   cat << EOF >> ${opendmarc_conf_file}
+
+## Automatically re-start on failures. Use with caution; if the filter fails
+## instantly after it starts, this can cause a tight fork(2) loop.
+#
+AutoRestart false
+EOF
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+
+# - Add 'HistoryFile' with default value to the original opendmarc.conf file
+#
+_param="HistoryFile"
+echononl " Add '${_param}' with default value to the opendmarc.conf file.."
+if ! $(grep -q -E "^${_param}\s+" ${opendmarc_conf_file} 2> /dev/null) ; then
+   cat << EOF >> ${opendmarc_conf_file}
+
+## If set, specifies the location of a text file to which records are written
+## that can be used to generate DMARC aggregate reports. Records are batches of
+## rows containing information about a single received message, and include all
+## relevant information needed to generate a DMARC aggregate report. It is
+## expected that this will not be used in its raw form, but rather periodically
+## imported into a relational database from which the aggregate reports can be
+## extracted using opendmarc-importstats(8).
+#
+HistoryFile /run/opendmarc/opendmarc.dat
+EOF
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+
+# - Add 'SPFIgnoreResults' with default value to the original opendmarc.conf file
+#
+_param="SPFIgnoreResults"
+echononl " Add '${_param}' with default value to the opendmarc.conf file.."
+if ! $(grep -q -E "^${_param}\s+" ${opendmarc_conf_file} 2> /dev/null) ; then
+   cat << EOF >> ${opendmarc_conf_file}
+
+## Causes the filter to ignore any SPF results in the header of the message. This
+## is useful if you want the filter to perform SPF checks itself, or because you
+## don't trust the arriving header. The default is "false".
+#
+SPFIgnoreResults false
+EOF
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+
+# - Add 'SPFSelfValidate' with default value to the original opendmarc.conf file
+#
+_param="SPFSelfValidate"
+echononl " Add '${_param}' with default value to the opendmarc.conf file.."
+if ! $(grep -q -E "^${_param}\s+" ${opendmarc_conf_file} 2> /dev/null) ; then
+   cat << EOF >> ${opendmarc_conf_file}
+
+## Causes the filter to perform a fallback SPF check itself when it can find no
+## SPF results in the message header. If SPFIgnoreResults is also set, it never
+## looks for SPF results in headers and always performs the SPF check itself when
+## this is set. The default is "false".
+#
+SPFSelfValidate false
+EOF
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+
+# - Save configuration file from distribution
+# -
+echononl "   Save configuration file from distribution"
+if [[ -f "${opendmarc_conf_file}.ORIG" ]] ; then
+   echo_skipped
+else
+   cp -a $opendmarc_conf_file $opendmarc_conf_file.ORIG 2> "$log_file"
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+
+for _val in "${config_file_name_value_parameter_arr[@]}" ; do
+   IFS='|' read -a _val_arr <<< "${_val}"
+
+   echononl "   $opendmarc_conf_file: ${_val_arr[0]} -> ${_val_arr[1]}.."
+   if $(grep -E -q "^\s*${_val_arr[0]}\s+${_val_arr[1]}\s*$" $opendmarc_conf_file 2> /dev/null) ; then
+      echo_skipped
+   elif $(grep -E -q "^\s*#\s*${_val_arr[0]}\s+" $opendmarc_conf_file 2> /dev/null); then
+      perl -i -n -p -e "s&^(\s*#\s*${_val_arr[0]}.*)&\1\n${_val_arr[0]} ${_val_arr[1]}&" $opendmarc_conf_file > "$log_file" 2>&1
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+         opendmarc_needs_restart=true
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   elif $(grep -E -q "^\s*${_val_arr[0]}\s+" $opendmarc_conf_file 2> /dev/null) ; then
+      perl -i -n -p -e "s#^(\s*${_val_arr[0]}.*)#\#\1\n${_val_arr[0]} ${_val_arr[1]}#" $opendmarc_conf_file > "$log_file" 2>&1
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+         opendmarc_needs_restart=true
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   else
+      cat <<EOF >> $opendmarc_conf_file 2> "$log_file"
+
+${_val_arr[0]} ${_val_arr[1]}
+EOF
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+         opendmarc_needs_restart=true
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   fi
+done
+
+
+# - Assign ownership to the opendmarc user and restrict tthe
+# - file permissions:
+# -
+echononl "   Assign file permissions to '$opendmarc_conf_file'.."
+chmod u=rw,go=r $opendmarc_conf_file 2> $log_file
+if [[ $? -eq 0 ]] ; then
+   echo_ok
+else
+   echo_failed
+   error "$(cat $log_file)"
+fi
+
+
+# - Create the directories to hold opendmarc's data files, assign
+# - ownership to the opendmarc user, and restrict the file
+# - permissions:
+# -
+echononl "   Create directory '$opendmarc_base_dir'"
+if [[ -d "$opendmarc_base_dir" ]] ; then
+   echo_skipped
+else
+   opendmarc_needs_restart=true
+   mkdir ${opendmarc_base_dir} 2> $log_file
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+echononl "   Set ownership on directory '${opendmarc_base_dir}' (recursive).."
+chown -R opendmarc:opendmarc ${opendmarc_base_dir} 2> $log_file
+if [[ $? -eq 0 ]] ; then
+   echo_ok
+else
+   echo_failed
+   error "$(cat $log_file)"
+fi
+
+
+echononl "   Backup existing file '${opendmarc_base_dir}/ignore.hosts'.."
+if [[ -f "${opendmarc_base_dir}/ignore.hosts" ]] ; then
+   mv "${opendmarc_base_dir}/ignore.hosts" "${opendmarc_base_dir}/ignore.hosts.${backup_date}"
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+# - Create the file ${opendmarc_base_dir}/ignore.hosts
+# -
+echononl "   Create file '${opendmarc_base_dir}/ignore.hosts'.."
+if [[ -f "${opendmarc_base_dir}/ignore.hosts" ]] ; then
+   echo_skipped
+else
+   cat <<EOF > ${opendmarc_base_dir}/ignore.hosts 2> $log_file
+# /etc/opendmarc/ignore.hosts
+#
+# Aktuell hat OpenDMARC seinen Milter nur am Dienst
+# 'localhost:10025' hängen. Dort ist der Client
+# immer 127.0.0.1, nicht die externe Gegenstelle.
+#
+# Deshalb macht es in diesem Setup keinen Sinn,
+# hier IP-Adressen von externen Diensten (CRSend etc.)
+# einzutragen – sie würden nie matchen.
+#
+# WICHTIG:
+#  - KEIN 127.0.0.1
+#  - KEIN localhost
+#  - KEIN ::1
+#
+# Eintrag dieser Adressen würde DMARC komplett deaktivieren.
+#
+# ==> Datei bleibt absichtlich leer.
+EOF
+   opendmarc_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+
+
+# - Create the file ${opendmarc_base_dir}/ignore.hosts
+# -
+
+echononl "   Backup existing file '${opendmarc_base_dir}/ignore.mailfrom'.."
+if [[ -f "${opendmarc_base_dir}/ignore.mailfrom" ]] ; then
+   mv "${opendmarc_base_dir}/ignore.mailfrom" "${opendmarc_base_dir}/ignore.mailfrom.${backup_date}"
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+fi
+
+echononl "   Create file '${opendmarc_base_dir}/ignore.mailfrom'.."
+if [[ -f "${opendmarc_base_dir}/ignore.mailfrom" ]] ; then
+   echo_skipped
+else
+   cat <<EOF > ${opendmarc_base_dir}/ignore.mailfrom 2> $log_file
+# /etc/opendmarc/ignore.mailfrom
+#
+# Hier könnte man Absender-Domains von der DMARC-Prüfung
+# ausnehmen (z. B. problematische Partner-Domains).
+#
+# Aktuell ist das für dein Setup nicht notwendig.
+#
+# Beispiele (NICHT aktiv!):
+#   @example.org
+#   example.org
+#
+# ==> Datei bleibt absichtlich leer.
+EOF
+   opendmarc_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+
+
+# - Edit /etc/default/opendmarc
+# -
+# - Set:
+# -    SOCKET="local:${postfix_spool_dir}/opendmarc/opendmarc.sock"
+# -
+echononl "   Set 'SOCKET' at file /etc/default/opendmarc.."
+if grep -q -E "^\s*SOCKET" /etc/default/opendmarc 2>/dev/null ; then
+   if grep -q -E "^\s*SOCKET\s*=\s*\"*local:$opendmarc_socket_file" /etc/default/opendmarc  2>/dev/null ; then
+      echo_skipped
+   else
+      perl -i -n -p -e "s#^\s*SOCKET=.*#SOCKET=\"local:$opendmarc_socket_file\"#" /etc/default/opendmarc 2> $log_file
+      opendmarc_needs_restart=true
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   fi
+else
+   cat <<EOF >>/etc/default/opendmarc 2> $log_file
+SOCKET="local:$opendmarc_socket_file"
+EOF
+   opendmarc_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+
+
+# - Create the opendmarc socket directory in Postfix’s work area
+# - and make sure it has the correct ownership:
+# -
+echononl "   Create the opendmarc socket directory in Postfix's work area.."
+if [[ -d "${postfix_spool_dir}/opendmarc" ]] ; then
+   echo_skipped
+else
+   mkdir ${postfix_spool_dir}/opendmarc 2> $log_file
+   opendmarc_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+   echononl "   Set ownership on directory '${postfix_spool_dir}/opendmarc'.."
+   chown opendmarc:postfix ${postfix_spool_dir}/opendmarc 2> $log_file
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+
+
+# - Edit /etc/postfix/main.cf and add a section to activate
+# - processing of e-mail through the opendmarc daemon:
+# -
+echononl "   Backup existing postfix configuration (main.cf).."
+cp -a /etc/postfix/main.cf /etc/postfix/main.cf.$backup_date 2> $log_file
+if [[ $? -eq 0 ]] ; then
+   echo_ok
+else
+   echo_failed
+   error "$(cat $log_file)"
+fi
+
+echononl "   Set Variable non_smtpd_milters at '/etc/postfix/main.cf'.."
+if $(grep -q -E "^\s*non_smtpd_milters\s*=\s*.*opendkim.sock" /etc/postfix/main.cf 2> /dev/null) ; then
+   if $(grep -q -E "^\s*non_smtpd_milters\s*=\s*.*$(basename "${opendmarc_socket_file}")" /etc/postfix/main.cf); then
+      echo_skipped
+   else
+      perl -i -n -p -e "s&^\s*(non_smtpd_milters\s*=.*opendkim.sock)&\1,local:/$(basename "${opendmarc_socket_dir}")/$(basename "${opendmarc_socket_file}")&" \
+         /etc/postfix/main.cf > $log_file 2>&1
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+         postfix_needs_restart=true
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   fi
+else
+   echo_skipped
+   warn "Postfix is not adjusted. Complete Postfix configuration (main.cf) manually\!"
+fi
+
+
+echo ""
+
+
+# - Edit /etc/postfix/main.cf and add a section to activate 
+# - processing of e-mail through the OpenDKIM daemon:
+# -
+backup_date="$(date +%Y-%m-%d-%H%M)"
+echononl "   Backup existing postfix configuration (main.cf).."
+cp -a /etc/postfix/main.cf /etc/postfix/main.cf.$backup_date 2> $log_file
+if [[ $? -eq 0 ]] ; then
+   echo_ok
+else
+   echo_failed
+   error "$(cat $log_file)"
+fi
+
+echononl "   Activate processing of e-mail through the OpenDKIM daemon.."
+if grep -q -E "milter_default_action\s*=\s*accept" /etc/postfix/main.cf ; then
+   echo_skipped
+   info "Postfix (main.cf) was not changed - seems already be configured right."
+   echononl "   Delete previosly saved Postfix configuration.."
+   rm /etc/postfix/main.cf.$backup_date 2> $log_file
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   cat <<EOF >> /etc/postfix/main.cf 2> $log_file
+
+# ======= Milter configuration =======
+
+# OpenDKIM
+
+milter_default_action = accept
+
+# Postfix ≥ 2.6 milter_protocol = 6, Postfix ≤ 2.5 milter_protocol = 2
+milter_protocol = 6
+
+# Note:
+#    We will sign AFTER sending through AmaVIS, just befor sending out. So
+#    set 'smtpd_milters =' to an emty string here and add to localhost:10025
+#    section in master.cf: 'smtpd_milters=local:/opendkim/opendkim.sock'
+#
+#    If you want sign mails before sending through AmaVIS, set
+#    'smtpd_milters = local:/opendkim/opendkim.sock' here and add to
+#    localhost:10025 section in master.cf: 'smtpd_milters='
+#
+#smtpd_milters = local:/opendkim/opendkim.sock
+smtpd_milters =
+
+# Was sind non_smtpd_milters?
+#
+# non_smtpd_milters gilt für alle Postfix-Prozesse, die Mails verarbeiten, aber NICHT
+# der smtpd-Daemon sind.
+#
+# Das betrifft z. B.:
+#
+#     cleanup        Header/Content-Bereinigung
+#     qmgr           Queue-Manager
+#     lmtp / smtp    Auslieferung nach extern
+#     local          lokale Zustellung
+#
+# Das sind z. B.:
+#
+#     -  interne Bounces (MAILER-DAEMON)
+#
+#     -  Cron-Mails vom Server
+#
+#     -  Weiterleitungen, die Postfix selbst generiert
+#
+#     -  Mails, die über sendmail CLI gesendet werden
+#
+#     -  Mails, die Amavis über LMTP zurückgibt
+#
+#     -  etc.
+#
+#
+# DKIM soll auch die ausgehenden Mails signieren, die nicht über smtpd daemon versendet werden.
+non_smtpd_milters = local:/opendkim/opendkim.sock
+EOF
+   postfix_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+
+
+echo ""
+
+
+# - Prevent Postfix from setting the DMARC Header twice (one befor
+# - and one after processing amavis
+# -
+# - To disable milter processing after amavis, add to your master.cf in
+# - the after-amavis section:
+# -    127.0.0.1:10025 inet    n       -       -       -       -       smtpd
+# -       [...]
+# -       -o smtpd_milters=
+# -
+# - If you want to run the milter after amavis, set in main.cf
+# -    smtpd_milters=
+# - to an empty string and add the smtpd_milters configuration to master.cf
+# - (after-section amavis) instead:
+# -    -o smtpd_milters=local:/opendmarc/opendmarc.sock
+# -
+echononl "   Backup file '/etc/postfix/master.cf'.."
+cp -a /etc/postfix/master.cf /etc/postfix/master.cf.${backup_date} 2> $log_file
+if [[ $? -eq 0 ]] ; then
+   echo_ok
+else
+   echo_failed
+   error "$(cat $log_file)"
+fi
+
+echononl "   Adjust /etc/postfix/master.cf. Set DMARC after sending throuh AmaVIS.."
+_found=false
+_changed=false
+tmp_master_file="/tmp/postfix_master.cf"
+> $tmp_master_file
+while IFS='' read -r _line || [[ -n $_line ]] ; do
+
+   if $_found && ! echo "$_line" | grep -i -q -E "^\s*-o" 2> /dev/null ; then
+      echo "   -o smtpd_milters=local:/opendmarc/opendmarc.sock" >> "$tmp_master_file"
+      _changed=true
+      _found=false
+   fi
+
+   if $_found && echo "$_line" | grep -i -q -E "^\s*-o\s+smtpd_milters=\s*" ; then
+      _found=false
+      if ! echo "$_line" | grep -i -q -E "^\s*-o\s+smtpd_milters=\s*local:/opendmarc/opendmarc.sock\s*$" ; then
+         echo "   -o smtpd_milters=local:/opendmarc/opendmarc.sock" >> "$tmp_master_file"
+         _changed=true
+         continue
+      fi
+         
+   fi
+
+   if echo "$_line" | grep -i -q -E "^\s*(localhost|127.0.0.1):10025\s+inet\s+" 2> /dev/null ; then
+      _found=true
+   fi
+
+   echo "$_line" >> "$tmp_master_file"
+
+done < "/etc/postfix/master.cf"
+
+if $_changed ; then
+   cp $tmp_master_file /etc/postfix/master.cf 2> $log_file
+   postfix_needs_restart=true
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   echo_skipped
+   info "Postfix (master.cf) was not changed - seems already be configured right."
+   echononl "   Delete previosly saved file '/etc/postfix/master.cf'.."
+   rm /etc/postfix/master.cf.$backup_date 2> $log_file
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+fi
+rm -f $tmp_master_file
+
+echo ""
+
+echononl "   Enable OpenDMARC Service"
+if $SYSTEMD_EXISTS ; then
+   systemctl enable opendmarc > $log_file 2>&1
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+   else
+      echo_failed
+      error "$(cat $log_file)"
+   fi
+else
+   warn "Maybe OpenDMARC Service is not enabled, because its an old non-systemd os.."
+fi
+
+# - Restart opendmarc
+# -
+echononl "   Restart opendmarc.."
+if $opendmarc_needs_restart ; then
+   if $SYSTEMD_EXISTS ; then
+      systemctl restart opendmarc > $log_file 2>&1
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   else
+      /etc/init.d/opendmarc restart > $log_file 2>&1
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   fi
+else
+   echo_skipped
+fi
+
+
+# - Restart Postfix so it starts using opendmarc when processing mail:
+# -
+echononl "   Restart Postfix.."
+if $postfix_needs_restart ; then
+   if $SYSTEMD_EXISTS ; then
+      systemctl restart postfix > $log_file 2>&1
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   else
+      /etc/init.d/postfix restart > $log_file 2>&1
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   fi
+else
+   echo_skipped
+fi
+
+
+echo ""
+rm -f "$log_file"
+exit 0

DOC/DMARC_Rejections_SOP.md

@@ -0,0 +1,36 @@
+# Analyse und Begründung von DMARC-Rejects
+## (Postfix + OpenDMARC 1.4.2)
+
+### 1. Zweck
+Diese SOP beschreibt, wie DMARC-Rejects auf dem Mailserver revisionssicher analysiert und begründet werden, ohne die betroffene E-Mail anzunehmen oder erneut senden zu lassen.
+
+### 2. Systemkontext
+- MTA: Postfix
+- DMARC-Filter: OpenDMARC 1.4.2
+- SPF-Prüfung: policyd-spf
+- DKIM-Prüfung: OpenDKIM
+- Entscheidungspunkt: SMTP END-OF-MESSAGE
+
+### 3. Grundprinzip
+OpenDMARC loggt nur das Endergebnis der DMARC-Evaluation, nicht die Detailursachen. Die Ursache eines Rejects wird durch Log-Korrelation ermittelt.
+
+### 4. Relevante Logquellen
+- Postfix (SMTP-Rejects)
+- policyd-spf (SPF-Ergebnis, identity)
+- OpenDMARC (pass/fail/none pro Domain)
+
+### 5. Entscheidungslogik
+DMARC besteht nur, wenn mindestens ein Mechanismus DMARC-konform erfolgreich ist:
+- SPF(mailfrom) aligned
+- DKIM valid + aligned
+
+SPF über HELO ist für DMARC nicht verwertbar.
+
+### 6. Ableitungsregel
+Wenn SPF nur über HELO erfolgreich war und DMARC fail meldet, muss DKIM fehlgeschlagen sein.
+
+### 7. Revisionssichere Begründung
+Die E-Mail wurde gemäß der DMARC-Policy der Absenderdomain abgelehnt, da keine DMARC-konforme Authentifizierung vorlag.
+
+### 8. Referenzen
+RFC 7489 (DMARC), RFC 7208 (SPF), RFC 6376 (DKIM)

README.install

@@ -58,7 +58,7 @@
    -  create configuration file 'install_update_dovecot.conf'
          cp -a conf install_update_dovecot.conf.sample install_update_dovecot.conf
    - adjust configuration file 'install_update_dovecot.conf' to your needs
-   - run script 'install_update_dovecot.sh'
+   - run script 'install_update_dovecot-2.4.sh' # the old one was: 'install_update_dovecot.sh'
 
    Note:
       Maybe you have to finish installing postfixadmin, i.e creating admin account(s).

install_amavis.sh

@@ -5115,7 +5115,6 @@ EOF
 amavisfeed unix -       -       n       -       20       lmtp
    -o smtp_data_done_timeout=1200
    -o smtp_send_xforward_command=yes
-   -o disable_dns_lookups=yes
 EOF
 			fi
 		fi # if ! $smtps_present
@@ -5168,7 +5167,6 @@ EOF
 amavisfeed unix -       -       n       -       20       lmtp
    -o smtp_data_done_timeout=1200
    -o smtp_send_xforward_command=yes
-   -o disable_dns_lookups=yes
 EOF
 		fi
 
@@ -5207,7 +5205,6 @@ EOF
 amavisfeed unix -       -       n       -       20       lmtp
    -o smtp_data_done_timeout=1200
    -o smtp_send_xforward_command=yes
-   -o disable_dns_lookups=yes
 EOF
       continue
    fi

install_opendkim.sh

@@ -526,7 +526,6 @@ else
 127.0.0.1
 ::1
 localhost
-$(hostname -f)
 EOF
    opendkim_needs_restart=true
    if [[ $? -eq 0 ]] ; then
@@ -644,7 +643,7 @@ milter_protocol = 6
 #    localhost:10025 section in master.cf: 'smtpd_milters='
 #
 #smtpd_milters = local:/opendkim/opendkim.sock
-smtpd_milters =
+smtpd_milters = local:/opendkim/opendkim.sock
 
 # Was sind non_smtpd_milters?
 #

install_opendmarc.sh

@@ -780,8 +780,30 @@ if $(grep -q -E "^\s*non_smtpd_milters\s*=\s*.*opendkim.sock" /etc/postfix/main.
       fi
    fi
 else
+
    echo_skipped
-   warn "Postfix is not adjusted. Complete Postfix configuration (main.cf) manually\!"
+   warn "non_smtpd_milters is not adjusted. Complete Postfix configuration (main.cf) manually\!"
+fi
+
+
+echononl "   Set Variable smtpd_milters at '/etc/postfix/main.cf'.."
+if $(grep -q -E "^\s*smtpd_milters\s*=\s*.*opendkim.sock" /etc/postfix/main.cf 2> /dev/null) ; then
+   if $(grep -q -E "^\s*smtpd_milters\s*=\s*.*$(basename "${opendmarc_socket_file}")" /etc/postfix/main.cf); then
+      echo_skipped
+   else
+      perl -i -n -p -e "s&^\s*(smtpd_milters\s*=.*opendkim.sock)&\1,local:/$(basename "${opendmarc_socket_dir}")/$(basename "${opendmarc_socket_file}")&" \
+         /etc/postfix/main.cf > $log_file 2>&1
+      if [[ $? -eq 0 ]] ; then
+         echo_ok
+         postfix_needs_restart=true
+      else
+         echo_failed
+         error "$(cat $log_file)"
+      fi
+   fi
+else
+   echo_skipped
+   warn "smtpd_milters was not adjusted. Complete Postfix configuration (main.cf) manually\!"
 fi
 
 
@@ -818,7 +840,7 @@ else
 
 # ======= Milter configuration =======
 
-# OpenDKIM
+# OpenDKIM, OpenDMARC
 
 milter_default_action = accept
 

install_postfix_advanced.sh

@@ -2123,7 +2123,9 @@ smtpd_tls_key_file = $_TLS_KEY_FILE
 #smtpd_tls_dh1024_param_file = /etc/postfix/ssl/dh_1024.pem
 ## - also possible to use 2048 key with that parameter
 ## -
-smtpd_tls_dh1024_param_file = /etc/postfix/ssl/dh_2048.pem
+## - DEPRECATED parameter-
+## -
+#smtpd_tls_dh1024_param_file = /etc/postfix/ssl/dh_2048.pem
 
 ## - File with DH parameters that the Postfix SMTP server should use with EDH ciphers.
 ## -

install_postfix_base.sh

@@ -929,7 +929,9 @@ smtpd_tls_key_file = $_TLS_KEY_FILE
 #smtpd_tls_dh1024_param_file = /etc/postfix/ssl/dh_1024.pem
 ## - also possible to use 2048 key with that parameter
 ## -
-smtpd_tls_dh1024_param_file = /etc/postfix/ssl/dh_2048.pem
+## - DEPRECATED parameter-
+## -
+#smtpd_tls_dh1024_param_file = /etc/postfix/ssl/dh_2048.pem
 
 ## - File with DH parameters that the Postfix SMTP server should use with EDH ciphers.
 ## -

install_postfixadmin.sh

@@ -2496,7 +2496,7 @@ fi
 ## -    $CONF['show_undeliverable']='NO';
 ## -    $CONF['show_popimap']='NO';
 ## -
-## -    $CONF['used_quotas'] = 'YES';
+## -    $CONF['used_quotas'] = 'NO';
 ## -    $CONF['new_quota_table'] = 'YES';
 ## -
 echononl "\tAdjust Postfix Admin's Configuration - Part 5"
@@ -2528,7 +2528,7 @@ perl -i -n -p -e "s#^(\s*\\\$CONF\['show_undeliverable'\]\s*=.*)#//!\1\n\\\$CONF
   $pfa_conf_file >> $log_file 2>&1 || _failed=true 
 perl -i -n -p -e "s#^(\s*\\\$CONF\['show_popimap'\]\s*=.*)#//!\1\n\\\$CONF['show_popimap'] = 'NO';#" \
   $pfa_conf_file >> $log_file 2>&1 || _failed=true 
-perl -i -n -p -e "s#^(\s*\\\$CONF\['used_quotas'\]\s*=.*)#//!\1\n\\\$CONF['used_quotas'] = 'YES';#" \
+perl -i -n -p -e "s#^(\s*\\\$CONF\['used_quotas'\]\s*=.*)#//!\1\n\\\$CONF['used_quotas'] = 'NO';#" \
   $pfa_conf_file >> $log_file 2>&1 || _failed=true 
 perl -i -n -p -e "s#^(\s*\\\$CONF\['new_quota_table'\]\s*=.*)#//!\1\n\\\$CONF['new_quota_table'] = 'YES';#" \
   $pfa_conf_file >> $log_file 2>&1 || _failed=true 

install_update_dovecot-2.4.sh

@@ -2639,6 +2639,58 @@ if $_new ; then
 fi
 
 
+# Dovecot's configure script queries pkg-config for "systemd" and expects
+# the variable "systemdsystemunitdir" to be defined.
+# On minimal Debian(13)-based systems, only libsystemd.pc is provided and
+# no systemd.pc (and often no systemd binary) exists.
+# This pkg-config wrapper provides the missing metadata so configure
+# can auto-detect the correct systemd unit installation directory.
+#
+if [[ "${os_dist,,}" = "debian" ]] && [[ "$os_version" -ge 13 ]] ; then
+   echononl "   Create '/usr/lib/x86_64-linux-gnu/pkgconfig/systemd.pc'."
+   if [[ ! -f "/usr/lib/x86_64-linux-gnu/pkgconfig/systemd.pc" ]] ; then
+      cat <<'EOF' > /usr/lib/x86_64-linux-gnu/pkgconfig/systemd.pc 2>>${_log_dir}/debian-install.log 
+prefix=/usr
+exec_prefix=${prefix}
+libdir=/usr/lib/x86_64-linux-gnu
+includedir=/usr/include
+
+# Some build systems (incl. Dovecot's configure) query this to decide where
+# to install systemd service/unit files:
+systemdsystemunitdir=/usr/lib/systemd/system
+
+Name: systemd
+Description: systemd (pkg-config compatibility wrapper)
+Version: 0
+Requires: libsystemd
+EOF
+
+      if [[ $? -gt 0 ]] ; then
+         echo -e "$rc_failed"
+         error "$(cat $log_file)"
+
+         echo ""
+         echo "   command was:"
+         echo "      ln -s  libsystemd.pc /usr/lib/x86_64-linux-gnu/pkgconfig/systemd.pc"
+         echo ""
+
+         echononl "   continue anyway [yes/no]: "
+         read OK
+         OK="$(echo "$OK" | tr '[:upper:]' '[:lower:]')"
+         while [[ "$OK" != "yes" ]] && [[  "$OK" != "no" ]] ; do
+            echononl "Wrong entry! - repeat [yes/no]: "
+            read OK
+         done
+         [[ $OK = "yes" ]] || fatal "Abbruch durch User"
+      else
+         echo -e "$rc_done"
+      fi
+   else
+      echo -e "$rc_skipped"
+   fi
+fi
+
+
 ## -----------------
 ## - Create Users/groups needed for dovecot
 
@@ -2778,6 +2830,11 @@ if $systemd_support ; then
 fi
    #--with-systemdsystemunitdir=/etc/systemd/system/"
 
+#if [[ "${os_dist,,}" = "debian" ]] && [[ "$os_version" -ge 13 ]] ; then
+#   config_params="$config_params systemdsystemunitdir=/lib/systemd/system"
+#fi
+
+
 echononl "   Configure Dovecot.."
 #./configure \
 #   --prefix=/usr/local/dovecot-${_version} \
@@ -3151,12 +3208,12 @@ EOF
    echononl "   Create empty file '$(basename "${_conf_file}")'.."
    if [[ ! -f "${_conf_file}" ]] ; then
       _failed=false
-      cat <<'EOF' > "${_conf_file}" 2> "${log_file}"
+      cat <<EOF > "${_conf_file}" 2> "${log_file}"
 ##
 ## Settings for the Sieve interpreter
 ##
 
-# see also:  https://doc.dovecot.org/2.4.1/core/plugins/sieve.html
+# see also:  https://doc.dovecot.org/${_version}/core/plugins/sieve.html
 
 # To use Sieve, you will first need to make sure you are using Dovecot LDA or LMTP Server
 # for delivering incoming mail to users' mailboxes.
@@ -3221,12 +3278,12 @@ EOF
    echononl "   Create empty file '$(basename "${_conf_file}")'.."
    if [[ ! -f "${_conf_file}" ]] ; then
       _failed=false
-      cat <<'EOF' > "${_conf_file}" 2> "${log_file}"
+      cat <<EOF > "${_conf_file}" 2> "${log_file}"
 ##
 ## Settings for the Sieve Vacation Extension
 ##
 
-# see also:  https://doc.dovecot.org/2.4.1/core/config/sieve/extensions/vacation.html
+# see also:  https://doc.dovecot.org/${_version}/core/config/sieve/extensions/vacation.html
 
 # The Sieve vacation extension (RFC 5230) defines a mechanism to generate automatic
 # replies to incoming email messages. It takes various precautions to make sure replies
@@ -6291,7 +6348,7 @@ EOF
 # same as IMAP's LOGIN command. The LOGIN command is internally handled using PLAIN
 # mechanism.
 #
-# see https://doc.dovecot.org/2.4.1/core/config/auth/mechanisms/overview.html for
+# see https://doc.dovecot.org/${_version}/core/config/auth/mechanisms/overview.html for
 # further (non-rcCleartext) Authentication.
 auth_mechanisms = ${auth_mechanisms}
 EOF
@@ -6417,11 +6474,11 @@ if [[ $dovecot_major_version -gt 2 ]] \
 
    if [[ "$db_driver" = "pgsql" ]]; then
 
-      read -r -d '' NEW_BLOCK <<'EOF'
+      read -r -d '' NEW_BLOCK <<EOF
 passdb sql {
 
    # Load SQL connection data
-   !include /usr/local/dovecot-2.4.1-4/etc/dovecot/sql-connect.conf.ext
+   !include /usr/local/dovecot-${_version}/etc/dovecot/sql-connect.conf.ext
 
    query = SELECT username AS user, password \\
       FROM mailbox \\
@@ -6449,18 +6506,18 @@ EOF
 # LMTP mail delivery	   YES	            YES
 # doveadm commands	   YES	            YES
 #
-# see also: https://doc.dovecot.org/2.4.1/core/config/auth/passdb.html
+# see also: https://doc.dovecot.org/${_version}/core/config/auth/passdb.html
 #
 $(echo -e "${NEW_BLOCK}")
 EOF
       fi
 
 
-      read -r -d '' NEW_BLOCK <<'EOF'
+      read -r -d '' NEW_BLOCK <<EOF
 userdb sql {
 
    # Load SQL connection data
-   !include /usr/local/dovecot-2.4.1-4/etc/dovecot/sql-connect.conf.ext
+   !include /usr/local/dovecot-${_version}/etc/dovecot/sql-connect.conf.ext
 
    query = SELECT '/var/vmail/' || maildir AS home, \\
       '5000' AS uid, '5000' AS gid \\
@@ -6497,7 +6554,7 @@ EOF
 # The userdb and passdb may be the same or they may be different depending on your needs.
 # You can also have multiple authentication databases.
 #
-# see: https://doc.dovecot.org/2.4.1/core/config/auth/userdb.html
+# see: https://doc.dovecot.org/${_version}/core/config/auth/userdb.html
 #
 $(echo -e "${NEW_BLOCK}")
 EOF
@@ -6505,11 +6562,11 @@ EOF
 
    elif [[ "$db_driver" = "mysql" ]]; then
 
-      read -r -d '' NEW_BLOCK <<'EOF'
+      read -r -d '' NEW_BLOCK <<EOF
 passdb sql {
 
    # Load SQL connection data
-   !include /usr/local/dovecot-2.4.1-4/etc/dovecot/sql-connect.conf.ext
+   !include /usr/local/dovecot-${_version}/etc/dovecot/sql-connect.conf.ext
 
    query = SELECT username AS user, password \\
       FROM mailbox \\
@@ -6537,17 +6594,17 @@ EOF
 # LMTP mail delivery	   YES	            YES
 # doveadm commands	   YES	            YES
 #
-# see also: https://doc.dovecot.org/2.4.1/core/config/auth/passdb.html
+# see also: https://doc.dovecot.org/${_version}/core/config/auth/passdb.html
 #
 $(echo -e "${NEW_BLOCK}")
 EOF
       fi
 
-      read -r -d '' NEW_BLOCK <<'EOF'
+      read -r -d '' NEW_BLOCK <<EOF
 userdb sql {
 
    # Load SQL connection data
-   !include /usr/local/dovecot-2.4.1-4/etc/dovecot/sql-connect.conf.ext
+   !include /usr/local/dovecot-${_version}/etc/dovecot/sql-connect.conf.ext
 
    query = SELECT CONCAT('/var/vmail/',maildir) AS home, \\
       '5000' AS uid, '5000' AS gid \\
@@ -6584,7 +6641,7 @@ EOF
 # The userdb and passdb may be the same or they may be different depending on your needs.
 # You can also have multiple authentication databases.
 #
-# see: https://doc.dovecot.org/2.4.1/core/config/auth/userdb.html
+# see: https://doc.dovecot.org/${_version}/core/config/auth/userdb.html
 #
 $(echo -e "${NEW_BLOCK}")
 EOF
@@ -7081,7 +7138,7 @@ if [[ $dovecot_major_version -gt 2 ]] \
 #
 # As used here, %{user | domain} expands to the domain of the local user.  Other Mail user
 # variables can be used as well.
-#     see: https://doc.dovecot.org/2.4.1/core/settings/variables.html#mail-user-variables
+#     see: https://doc.dovecot.org/${_version}/core/settings/variables.html#mail-user-variables
 postmaster_address = ${postmaster_address}
 EOF
    fi
@@ -7231,7 +7288,7 @@ protocol lmtp {
    #
    # As used here, %{user | domain} expands to the domain of the local user.  Other Mail user
    # variables can be used as well.
-   #     see: https://doc.dovecot.org/2.4.1/core/settings/variables.html#mail-user-variables
+   #     see: https://doc.dovecot.org/${_version}/core/settings/variables.html#mail-user-variables
    postmaster_address = ${postmaster_address}
 
    mail_plugins {
@@ -9180,11 +9237,11 @@ if [[ $dovecot_major_version -gt 2 ]] \
 
    if [[ "$db_driver" = "pgsql" ]]; then
 
-      read -r -d '' NEW_BLOCK <<'EOF'
+      read -r -d '' NEW_BLOCK <<EOF
 userdb sql {
 
    # Load SQL connection data
-   !include /usr/local/dovecot-2.4.1-4/etc/dovecot/sql-connect.conf.ext
+   !include /usr/local/dovecot-${_version}/etc/dovecot/sql-connect.conf.ext
 
    query = SELECT '/var/vmail/' || maildir AS home, \\
       '5000' AS uid, '5000' AS gid, \\
@@ -9222,7 +9279,7 @@ EOF
 # The userdb and passdb may be the same or they may be different depending on your needs.
 # You can also have multiple authentication databases.
 #
-# see: https://doc.dovecot.org/2.4.1/core/config/auth/userdb.html
+# see: https://doc.dovecot.org/${_version}/core/config/auth/userdb.html
 #
 ${NEW_BLOCK}
 EOF
@@ -9234,11 +9291,11 @@ EOF
 
    elif [[ "$db_driver" = "mysql" ]]; then
 
-      read -r -d '' NEW_BLOCK <<'EOF'
+      read -r -d '' NEW_BLOCK <<EOF
 userdb sql {
 
    # Load SQL connection data
-   !include /usr/local/dovecot-2.4.1-4/etc/dovecot/sql-connect.conf.ext
+   !include /usr/local/dovecot-${_version}/etc/dovecot/sql-connect.conf.ext
 
    query = SELECT CONCAT('/var/vmail/',maildir) AS home, \
       '5000' AS uid, '5000' AS gid, \
@@ -9276,7 +9333,7 @@ EOF
 # The userdb and passdb may be the same or they may be different depending on your needs.
 # You can also have multiple authentication databases.
 #
-# see: https://doc.dovecot.org/2.4.1/core/config/auth/userdb.html
+# see: https://doc.dovecot.org/${_version}/core/config/auth/userdb.html
 #
 $(echo -e "${NEW_BLOCK}")
 EOF