install_update_dovecot-2.4.sh: support english language in qota warn messages.

conf/install_update_dovecot.conf.sample

@@ -165,8 +165,16 @@ max_userip_connections=24
 #auth_mechanisms="plain login digest-md5 cram-md5"
 auth_mechanisms="plain login"
 
+
+# ---
 # - Settings for quota warning sript
-# - 
+# ---
+
+# msg_language
+#
+#  possible Vallues are 'en' or 'de' 
+#
+msg_language=de
 from_address="o.open <oo@oopen.de>"
 reply_to="oo@oopen.de"
 webmailer="https://webmail.oopen.de"

create-update-postfix-pcre-chek-files.sh

@@ -115,9 +115,11 @@ DEFAULT_ADMIN_EMAIL="argus@oopen.de"
 
 # - Is this a systemd system?
 # -
-if [[ "X`which systemd`" = "X" ]]; then
-   systemd_exists=false
-else
+systemd_exists=false
+systemd=$(which systemd)
+systemctl=$(which systemctl)
+
+if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
    systemd_exists=true
 fi
 

install_amavis.sh

@@ -154,9 +154,11 @@ QUARANTINE_ADMIN=$DEFAULT_QUARANTINE_ADMIN
 
 # - Is this a systemd system?
 # -
-if [[ "X`which systemd`" = "X" ]]; then
-   systemd_exists=false
-else
+systemd_exists=false
+systemd=$(which systemd)
+systemctl=$(which systemctl)
+
+if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
    systemd_exists=true
 fi
 
@@ -4315,6 +4317,23 @@ if (-r \$policy_banks_file) {
 \$final_bad_header_destiny = D_PASS;
 
 
+# ----------------------------------------------------------
+# Admin E-Mails / Warnungen direct von AMaViS (nicht DSN- oder Bounce-Mails)
+# ----------------------------------------------------------
+
+# Bemerkung:
+#     *nochmal*: das hat nichts mit den eigentlichen DSN-/Bounce-Mails zu tun.
+
+\$virus_admin = undef;
+\$spam_admin  = undef;
+
+\$warnvirusrecip   = 0;
+\$warnbannedrecip  = 0;
+\$warnbannedsender = 0;
+\$warnbadhrecip    = 0;
+\$warn_offsite     = 0;
+
+
 
 # Bypass spam checking for trusted networks using mynetworks
 #
@@ -4989,19 +5008,6 @@ EOF
 EOF
       fi
 
-      if ${listen_on_additional_smtp_port} ; then
-         cat >> $postfix_master_cf << EOF
-${additional_smtp_port}      inet  n       -       y       -       -       smtpd
-   -o smtpd_proxy_filter=127.0.0.1:10024
-   -o content_filter=
-EOF
-         if [[ "$SASL_AUTH_ENABLED" = "no" ]] ; then
-            cat >> $postfix_master_cf << EOF
-   -o smtpd_sasl_auth_enable=no
-EOF
-         fi
-      fi
-
 		if ! $submission_present && ! $smtps_present && ! $localhost_10025_present ; then
 					cat >> $postfix_master_cf << EOF
 localhost:10025  inet  n       -       y       -       -       smtpd
@@ -5016,13 +5022,9 @@ localhost:10025  inet  n       -       y       -       -       smtpd
    -o mynetworks=127.0.0.0/8,[::1]/128
    -o receive_override_options=no_unknown_recipient_checks
 EOF
-         if [[ -n "$(which opendkim)" && -n "$(which opendmarc)" ]] ; then
+         if [[-n "$(which opendmarc)" ]] ; then
             cat >> $postfix_master_cf << EOF
-   -o smtpd_milters=local:/opendkim/opendkim.sock,local:/opendmarc/opendmarc.sock
-EOF
-         elif [[ -n "$(which opendkim)" ]] ; then
-            cat >> $postfix_master_cf << EOF
-   -o smtpd_milters=local:/opendkim/opendkim.sock
+   -o smtpd_milters=local:/opendmarc/opendmarc.sock
 EOF
          fi
          cat >> $postfix_master_cf << EOF
@@ -5033,8 +5035,26 @@ EOF
       continue
    fi
 
+   if ${listen_on_additional_smtp_port} \
+      && echo "$_line" | grep -i -E "^\s*${additional_smtp_port}\s+inet" > /dev/null 2>&1 ; then
+      _found=true
+      cat >> $postfix_master_cf << EOF
+${additional_smtp_port}      inet  n       -       y       -       -       smtpd
+   -o smtpd_proxy_filter=127.0.0.1:10024
+   -o content_filter=
+EOF
+      if [[ "$SASL_AUTH_ENABLED" = "no" ]] ; then
+         cat >> $postfix_master_cf << EOF
+   -o smtpd_sasl_auth_enable=no
+EOF
+      fi
 
-	if $submission_present && echo "$_line" | grep -i -E "^^submission\s+" > /dev/null 2>&1 ; then
+      continue
+
+   fi
+
+
+	if $submission_present && echo "$_line" | grep -i -E "^submission\s+" > /dev/null 2>&1 ; then
 		_found=true
 		cat >> $postfix_master_cf << EOF
 submission inet n       -       y       -       20       smtpd
@@ -5042,6 +5062,13 @@ submission inet n       -       y       -       20       smtpd
    -o smtpd_tls_security_level=encrypt
    -o smtpd_sasl_auth_enable=yes
    -o smtpd_client_restrictions=permit_sasl_authenticated,reject
+EOF
+      if [[ -n "$(which opendkim)"  ]] ; then
+         cat >> $postfix_master_cf << EOF
+   -o smtpd_milters=local:/opendkim/opendkim.sock
+EOF
+      fi
+      cat >> $postfix_master_cf << EOF
    #-o milter_macro_daemon_name=ORIGINATING
 EOF
 		if ! $smtps_present ; then
@@ -5059,13 +5086,9 @@ localhost:10025  inet  n       -       y       -       -       smtpd
    -o mynetworks=127.0.0.0/8,[::1]/128
    -o receive_override_options=no_unknown_recipient_checks
 EOF
-            if [[ -n "$(which opendkim)" && -n "$(which opendmarc)" ]] ; then
+            if [[ -n "$(which opendmarc)" ]] ; then
                cat >> $postfix_master_cf << EOF
-   -o smtpd_milters=local:/opendkim/opendkim.sock,local:/opendmarc/opendmarc.sock
-EOF
-            elif [[ -n "$(which opendkim)" ]] ; then
-               cat >> $postfix_master_cf << EOF
-   -o smtpd_milters=local:/opendkim/opendkim.sock
+   -o smtpd_milters=local:/opendmarc/opendmarc.sock
 EOF
             fi
             cat >> $postfix_master_cf << EOF
@@ -5076,9 +5099,9 @@ EOF
 			if ! $amavisfeed_present ; then
 				cat >> $postfix_master_cf << EOF
 amavisfeed unix -       -       n       -       20       lmtp
-    -o smtp_data_done_timeout=1200
-    -o smtp_send_xforward_command=yes
-    -o disable_dns_lookups=yes
+   -o smtp_data_done_timeout=1200
+   -o smtp_send_xforward_command=yes
+   -o disable_dns_lookups=yes
 EOF
 			fi
 		fi # if ! $smtps_present
@@ -5092,11 +5115,18 @@ EOF
 		_found=true
 		cat >> $postfix_master_cf << EOF
 smtps     inet  n       -       y       -       -       smtpd
-  -o content_filter=amavisfeed:[127.0.0.1]:10024
-  -o smtpd_tls_wrappermode=yes
-  -o smtpd_sasl_auth_enable=yes
-  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
-  #-o milter_macro_daemon_name=ORIGINATING
+   -o content_filter=amavisfeed:[127.0.0.1]:10024
+   -o smtpd_tls_wrappermode=yes
+   -o smtpd_sasl_auth_enable=yes
+   -o smtpd_client_restrictions=permit_sasl_authenticated,reject
+EOF
+      if [[ -n "$(which opendkim)"  ]] ; then
+         cat >> $postfix_master_cf << EOF
+   -o smtpd_milters=local:/opendkim/opendkim.sock
+EOF
+      fi
+      cat >> $postfix_master_cf << EOF
+   #-o milter_macro_daemon_name=ORIGINATING
 EOF
 
 		if ! $localhost_10025_present ; then
@@ -5113,15 +5143,11 @@ localhost:10025  inet  n       -       y       -       -       smtpd
    -o mynetworks=127.0.0.0/8,[::1]/128
    -o receive_override_options=no_unknown_recipient_checks
 EOF
-         if [[ -n "$(which opendkim)" && -n "$(which opendmarc)" ]] ; then
+         if [[ -n "$(which opendmarc)" ]] ; then
             cat >> $postfix_master_cf << EOF
-   -o smtpd_milters=local:/opendkim/opendkim.sock,local:/opendmarc/opendmarc.sock
+   -o smtpd_milters=local:/opendmarc/opendmarc.sock
 EOF
-         elif [[ -n "$(which opendkim)" ]] ; then
-            cat >> $postfix_master_cf << EOF
-   -o smtpd_milters=local:/opendkim/opendkim.sock
-EOF
-         fi
+          fi
          cat >> $postfix_master_cf << EOF
    #-o mynetworks=127.0.0.0/8,[::1]/128,${IPV4}/32
 EOF
@@ -5130,9 +5156,9 @@ EOF
 		if ! $amavisfeed_present ; then
 			cat >> $postfix_master_cf << EOF
 amavisfeed unix -       -       n       -       20       lmtp
-    -o smtp_data_done_timeout=1200
-    -o smtp_send_xforward_command=yes
-    -o disable_dns_lookups=yes
+   -o smtp_data_done_timeout=1200
+   -o smtp_send_xforward_command=yes
+   -o disable_dns_lookups=yes
 EOF
 		fi
 
@@ -5156,16 +5182,12 @@ localhost:10025  inet  n       -       y       -       -       smtpd
    -o mynetworks=127.0.0.0/8,[::1]/128
    -o receive_override_options=no_unknown_recipient_checks
 EOF
-         if [[ -n "$(which opendkim)" && -n "$(which opendmarc)" ]] ; then
-            cat >> $postfix_master_cf << EOF
-   -o smtpd_milters=local:/opendkim/opendkim.sock,local:/opendmarc/opendmarc.sock
-EOF
-         elif [[ -n "$(which opendkim)" ]] ; then
-            cat >> $postfix_master_cf << EOF
-   -o smtpd_milters=local:/opendkim/opendkim.sock
-EOF
-         fi
+      if [[ -n "$(which opendmarc)" ]] ; then
          cat >> $postfix_master_cf << EOF
+   -o smtpd_milters=local:/opendmarc/opendmarc.sock
+EOF
+      fi
+      cat >> $postfix_master_cf << EOF
    #-o mynetworks=127.0.0.0/8,[::1]/128,${IPV4}/32
 EOF
       continue
@@ -5175,9 +5197,9 @@ EOF
       _found=true
       cat >> $postfix_master_cf << EOF
 amavisfeed unix -       -       n       -       20       lmtp
-    -o smtp_data_done_timeout=1200
-    -o smtp_send_xforward_command=yes
-    -o disable_dns_lookups=yes
+   -o smtp_data_done_timeout=1200
+   -o smtp_send_xforward_command=yes
+   -o disable_dns_lookups=yes
 EOF
       continue
    fi

install_opendkim.sh

@@ -94,9 +94,11 @@ echo_skipped() {
 
 # - Is 'systemd' supported on this system
 # -
-if [ "X`which systemd`" = "X" ]; then
-   SYSTEMD_EXISTS=false
-else
+SYSTEMD_EXISTS=false
+systemd=$(which systemd)
+systemctl=$(which systemctl)
+
+if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
    SYSTEMD_EXISTS=true
 fi
 

install_opendmarc.sh

@@ -116,9 +116,11 @@ echo_skipped() {
 
 # - Is 'systemd' supported on this system
 # -
-if [ "X`which systemd`" = "X" ]; then
-   SYSTEMD_EXISTS=false
-else
+SYSTEMD_EXISTS=false
+systemd=$(which systemd)
+systemctl=$(which systemctl)
+
+if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
    SYSTEMD_EXISTS=true
 fi
 

install_postfix_advanced.sh

@@ -136,9 +136,11 @@ DEFAULT_INSTALL_DMARC_REPORT_SUPPORT=false
 
 # - Is this a systemd system?
 # -
-if [[ "X`which systemd`" = "X" ]]; then
-   systemd_exists=false
-else
+systemd_exists=false
+systemd=$(which systemd)
+systemctl=$(which systemctl)
+
+if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
    systemd_exists=true
 fi
 

install_postfix_base.sh

@@ -136,9 +136,11 @@ DEFAULT_REWRITE_SENDER_DOMAIN=None
 
 # - Is this a systemd system?
 # -
-if [[ "X`which systemd`" = "X" ]]; then
-   systemd_exists=false
-else
+systemd_exists=false
+systemd=$(which systemd)
+systemctl=$(which systemctl)
+
+if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
    systemd_exists=true
 fi
 

install_postfwd.sh

@@ -65,6 +65,14 @@ echo_skipped() {
    echo -e "\033[80G[ \033[33m\033[1mskipped\033[m ]"
 }
 
+systemd_exists=false
+systemd=$(which systemd)
+systemctl=$(which systemctl)
+
+if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
+   systemd_exists=true
+fi
+
 ## - Install Postfix Firewall Daemon from debian packages system
 ## -
 echononl "   Install Postfix Firewall Daemon from debian packages system"

install_update_dovecot-2.4.sh

@@ -964,9 +964,11 @@ delete_variable_with_comments() {
 
 # - Support systemd ?
 # -
-if [[ "X$(which systemd)" = "X" ]]; then
-   SYSTEMD_EXISTS=false
-else
+SYSTEMD_EXISTS=false
+systemd=$(which systemd)
+systemctl=$(which systemctl)
+
+if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
    SYSTEMD_EXISTS=true
 fi
 
@@ -1024,6 +1026,13 @@ if [[ "$database" != "postgres" ]] && [[ "$database" != "mysql" ]] ; then
 fi
 [[ -n "$dbpassword" ]] || fatal "Parameter "dbpassword" not set."
 
+lang="${msg_language,,}"
+if [[ "$lang" =~ ^(en|us|en_us)$ ]]; then
+    msg_language="en"
+else
+    msg_language="de"
+fi
+   
 [[ -n "$from_address" ]] || fatal ""Parameter "from_address" not set.""
 [[ -n "$reply_to" ]] || fatal ""Parameter "reply_to" not set.""
 [[ -n "$webmailer" ]] || fatal ""Parameter "webmailer" not set.""
@@ -7587,9 +7596,10 @@ if [[ $dovecot_major_version -gt 2 ]] \
       read -r -d '' NEW_BLOCK <<EOF
 
 sieve_script personal {
-  driver = file
-  path = ~/sieve
-  active_path = ~/.dovecot.sieve
+   type = personal    # kann man schreiben, ist aber Default
+   driver = file
+   path = ~/sieve
+   active_path = ~/.dovecot.sieve
 }
 EOF
       replace_or_append_code_block "sieve_script personal" "${NEW_BLOCK}" "${_conf_file}" >> "${log_file}" 2>&1
@@ -7604,6 +7614,8 @@ EOF
 # personal
 # --------
 #
+# ** Used by both the Sieve plugin and the ManageSieve protocol **
+#
 # The personal storage serves as the user's main personal storage. Although more than a single
 # personal storage can be defined, only the first one listed in the configuration is used.
 #
@@ -7626,9 +7638,10 @@ EOF
 # no default script is executed.
 
 sieve_script personal {
-  driver = file
-  path = ~/sieve
-  active_path = ~/.dovecot.sieve
+   type = personal    # kann man schreiben, ist aber Default
+   driver = file
+   path = ~/sieve
+   active_path = ~/.dovecot.sieve
 }
 EOF
       if [[ $? -gt 0 ]]; then
@@ -7638,16 +7651,17 @@ EOF
    fi
 
 
-   if grep -qE "^\s*sieve_script\s+before\s*{" "${_conf_file}"; then
+   if grep -qE "^\s*sieve_script\s+before_spam\s*{" "${_conf_file}"; then
 
       read -r -d '' NEW_BLOCK <<EOF
 
-sieve_script before {
+sieve_script before_spam {
+   type = before
    driver = file
    path = /usr/local/dovecot/etc/dovecot/sieve/
 }
 EOF
-      replace_or_append_code_block "sieve_script before" "${NEW_BLOCK}" "${_conf_file}" >> "${log_file}" 2>&1
+      replace_or_append_code_block "sieve_script before_spam" "${NEW_BLOCK}" "${_conf_file}" >> "${log_file}" 2>&1
       if [[ $? -gt 0 ]]; then
          _failed=true
       fi
@@ -7676,7 +7690,8 @@ EOF
 # A before storage behaves identical to an after storage, except the contained script or
 # scripts are run before user's personal script (instead of after).
 
-sieve_script before {
+sieve_script before_spam {
+   type = before
    driver = file
    path = /usr/local/dovecot/etc/dovecot/sieve/
 }
@@ -7688,16 +7703,17 @@ EOF
    fi
 
 
-   if grep -qE "^\s*sieve_script\s+global\s*{" "${_conf_file}"; then
+   if grep -qE "^\s*sieve_script\s+global_includes\s*{" "${_conf_file}"; then
 
       read -r -d '' NEW_BLOCK <<EOF
 
-sieve_script global {
-  driver = file
-  path = /usr/local/dovecot/etc/dovecot/sieve/global/
+sieve_script global_includes {
+   type = global
+   driver = file
+   path = /usr/local/dovecot/etc/dovecot/sieve/global/
 }
 EOF
-      replace_or_append_code_block "sieve_script global" "${NEW_BLOCK}" "${_conf_file}" >> "${log_file}" 2>&1
+      replace_or_append_code_block "sieve_script global_includes" "${NEW_BLOCK}" "${_conf_file}" >> "${log_file}" 2>&1
       if [[ $? -gt 0 ]]; then
          _failed=true
       fi
@@ -7746,9 +7762,10 @@ EOF
 # storages are defined in the configuration until the script is found. The order can be
 # overridden by the sieve_script_precedence setting.
 
-sieve_script global {
-  driver = file
-  path = /usr/local/dovecot/etc/dovecot/sieve/global/
+sieve_script global_includes {
+   type = global
+   driver = file
+   path = /usr/local/dovecot/etc/dovecot/sieve/global/
 }
 EOF
       if [[ $? -gt 0 ]]; then
@@ -9902,7 +9919,47 @@ if [[ $dovecot_major_version -gt 2 ]] \
    echononl "   Create quota warning script.."
    ## - create the user-warning script
    ## -
-   cat <<EOF >/usr/local/bin/quota-warning.sh
+   if [[ "${msg_language}" == "en" ]] ; then
+      cat <<EOF >/usr/local/bin/quota-warning.sh
+#!/usr/bin/env bash
+
+# author:   zhang huangbin <michaelbibby (at) gmail.com>
+# purpose:  send mail to notify user when his mailbox quota exceeds a
+#           specified limit.
+# project:  iredmail (http://www.iredmail.org/)
+
+LANG=en_US.UTF-8
+
+percent=\$1
+user=\$2
+
+cat << EOF |  /usr/local/dovecot/libexec/dovecot/dovecot-lda -d \${user} -o quota_enforce=no
+Date: `date +"%a, %e %b %Y %H:%M:%S %z"`
+From: $from_address
+Reply-to: $reply_to
+To:\${user}
+Subject: Quota warning - mailbox is ${percent}% full
+content-type: text/plain;
+   charset=utf-8
+
+Hello!
+
+Your email inbox
+   \${user}
+is over \${percent}% full. To continue receiving emails, please delete emails from your inbox on the server.
+
+You can also use the webmail service:
+   $webmailer
+
+After deleting emails, please remember to empty the trash folder as well.
+
+Best regards
+
+$salutation
+${_EOF:-EOF}
+EOF
+   else
+      cat <<EOF >/usr/local/bin/quota-warning.sh
 #!/usr/bin/env bash
 
 # author:   zhang huangbin <michaelbibby (at) gmail.com>
@@ -9941,6 +9998,7 @@ Viele Grüße
 $salutation
 ${_EOF:-EOF}
 EOF
+   fi
    if [ "$?" = 0 ]; then
       echo -e "$rc_done"
    else
@@ -9953,7 +10011,33 @@ EOF
    echononl "   Create quota warn-under script.."
    ## - create the user-warning script
    ## -
-   cat <<EOF >/usr/local/bin/quota-warn-under.sh
+   if [[ "${msg_language}" == "en" ]] ; then
+      cat <<EOF >/usr/local/bin/quota-warn-under.sh
+cat << EOF |  /usr/local/dovecot/libexec/dovecot/dovecot-lda -d \${user} -o quota_enforce=no
+Date: \`date +"%a, %e %b %Y %H:%M:%S %z"\`
+From: $from_address
+Reply-to: $reply_to
+To:\${user}
+Subject: Mailbox quota: less than ${percent}% used
+content-type: text/plain;
+   charset=utf-8
+
+Your mailbox
+   \${user}
+can now receive e-mail again.
+
+Please note that, depending on how much space you have freed, your available storage may fill up again quickly.
+
+You can check the current usage in your mail client or via the webmailer here:
+   $webmailer
+
+Best regards
+
+$salutation
+${_EOF:-EOF}
+EOF
+   else
+      cat <<EOF >/usr/local/bin/quota-warn-under.sh
 #!/usr/bin/env bash
 
 percent=\$1
@@ -9985,6 +10069,7 @@ Viele Grüße
 $salutation
 ${_EOF:-EOF}
 EOF
+   fi
    if [ "$?" = 0 ]; then
       echo -e "$rc_done"
    else
@@ -10871,24 +10956,27 @@ EOF
    replace_or_append_code_block "protocol sieve" "${NEW_BLOCK}" "${_conf_file}" || _failed=true
 
 
-   read -r -d '' NEW_BLOCK <<'EOF'
-sieve_script personal {
-  path = ~/sieve
-  active_path = ~/.dovecot.sieve
-}
-EOF
-   if grep -qE "^\s*sieve_script\s+personal\s+{" "${_conf_file}"; then
-
-      replace_code_block "sieve_script personal" "${NEW_BLOCK}" "${_conf_file}" || _failed=true
-
-   else
-
-       cat <<EOF >> "${_conf_file}" || _failed=true
-
-# Used by both the Sieve plugin and the ManageSieve protocol
-${NEW_BLOCK}
-EOF
-   fi
+#   read -r -d '' NEW_BLOCK <<'EOF'
+#sieve_script personal {
+#   type = personal    # kann man schreiben, ist aber Default
+#   type = personal
+#   driver = file
+#   path = ~/sieve
+#   active_path = ~/.dovecot.sieve
+#}
+#EOF
+#   if grep -qE "^\s*sieve_script\s+personal\s+{" "${_conf_file}"; then
+#
+#      replace_code_block "sieve_script personal" "${NEW_BLOCK}" "${_conf_file}" || _failed=true
+#
+#   else
+#
+#       cat <<EOF >> "${_conf_file}" || _failed=true
+#
+## Used by both the Sieve plugin and the ManageSieve protocol
+#${NEW_BLOCK}
+#EOF
+#   fi
 
 
    if ! $_failed ; then

install_update_dovecot.sh

@@ -148,9 +148,11 @@ detect_os_1 () {
 
 # - Support systemd ?
 # -
-if [[ "X$(which systemd)" = "X" ]]; then
-   SYSTEMD_EXISTS=false
-else
+SYSTEMD_EXISTS=false
+systemd=$(which systemd)
+systemctl=$(which systemctl)
+
+if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
    SYSTEMD_EXISTS=true
 fi
 

install_vacation.sh

@@ -95,6 +95,16 @@ echo_skipped() {
    echo -e "\033[75G[ \033[30m\033[1mskipped\033[m ]"
 }
 
+# -Is systemd supported on this system?
+# -
+systemd_supported=false
+systemd=$(which systemd)
+systemctl=$(which systemctl)
+
+if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
+   systemd_supported=true
+fi
+
 
 if [ "$POSTFIX_DB_TYPE" = "postgres" -o  "$POSTFIX_DB_TYPE" = "postgresql" -o "$POSTFIX_DB_TYPE" = "pgsql" -o "$POSTFIX_DB_TYPE" = "psql" ];then
    POSTFIX_DB_TYPE=pgsql

update_clamav-unofficial-sigs.sh

@@ -182,9 +182,11 @@ fi
 
 # - Is this a systemd system?
 # -
-if [[ "X`which systemd`" = "X" ]]; then
-   systemd_exists=false
-else
+systemd_exists=false
+systemd=$(which systemd)
+systemctl=$(which systemctl)
+
+if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
    systemd_exists=true
 fi
 

update_postfix_dh_parameters.sh

@@ -126,9 +126,11 @@ DEFAULT_SASL_AUTH=false
 
 # - Is this a systemd system?
 # -
-if [[ "X`which systemd`" = "X" ]]; then
-   systemd_exists=false
-else
+systemd_exists=false
+systemd=$(which systemd)
+systemctl=$(which systemctl)
+
+if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
    systemd_exists=true
 fi