diff --git a/install_sympa.sh b/install_sympa.sh
index d901757..4bfd44b 100755
--- a/install_sympa.sh
+++ b/install_sympa.sh
@@ -61,6 +61,7 @@ _required_debian_packages="
    libio-socket-ssl-perl
    libsoap-lite-perl
    libcrypt-ciphersaber-perl
+   libmail-sendmail-perl
    libmail-dkim-perl
    cpanminus
    "
@@ -198,10 +199,12 @@ trap clean_up SIGHUP SIGINT SIGTERM
 
 # - Support systemd ?
 # -
-if [[ "X$(which systemd)" = "X" ]]; then
-   SYSTEMD_EXISTS=false
+_systemd="$(which systemd)"
+_systemctl="$(which systemctl)"
+if [[ -z "$_systemd" ]] && [[ -z "$_systemctl" ]]; then
+   SYSTEMD_SUPPORTED=false
 else
-   SYSTEMD_EXISTS=true
+   SYSTEMD_SUPPORTED=true
 fi
 
 
@@ -273,12 +276,31 @@ fi
 
 
 APACHE_INIT_SCRIPT=""
-if [ -x "/etc/init.d/apache2" ]; then
-   APACHE_INIT_SCRIPT="/etc/init.d/apache2"
-elif [ -x "/etc/init.d/apachectl" ]; then
-   APACHE_INIT_SCRIPT="/etc/init.d/apachectl"
-else
-   fatal 'Cannot find init-script for Apache web server!'
+APACHE_SERVICE_FILE=""
+
+if $SYSTEMD_SUPPORTED ; then
+	# - Is Service exclusive controlled by systemd
+	# -
+	if systemctl -t service list-unit-files \
+			| grep -e "^mysql" \
+			| grep -q enabled 2> /devnull ; then
+
+		APACHE_SERVICE_FILE=$(systemctl -t service list-unit-files \
+										| grep -e "^apache" \
+										| awk '{print$1}')
+	fi
+fi
+
+if [[ -z "$APACHE_SERVICE_FILE" ]] ; then
+	if [ -x "$(realpath /etc/init.d/apache2)" ]; then
+		APACHE_INIT_SCRIPT="/etc/init.d/apache2"
+	elif [ -x "$(realpath /etc/init.d/apachectl)" ]; then
+		APACHE_INIT_SCRIPT="/etc/init.d/apachectl"
+	fi
+fi
+
+if [[ -z "$APACHE_INIT_SCRIPT" ]] && [[ -z $APACHE_SERVICE_FILE ]]; then
+	fatal 'Neither an init-script nor a service file for apache2 found!'
 fi
 
 
@@ -1187,7 +1209,7 @@ while [ "X$OK" != "Xyes" -a "X$OK" != "Xno" ]; do
    OK=`echo "$OK" | tr '[:upper:]' '[:lower:]'`
 done
 if [ "$OK" = "yes" ]; then
-   SYSTEMD_EXISTS=false
+   SYSTEMD_SUPPORTED=false
 fi
 
 if $UPDATE_SYMPA ;then
@@ -1245,7 +1267,7 @@ if ! $UPDATE_SYMPA ; then
 fi
 echo "Directory for init scripts......: $SYMPA_INIT_DIR"
 echo ""
-echo "Use systemd.....................: $SYSTEMD_EXISTS"
+echo "Use systemd.....................: $SYSTEMD_SUPPORTED"
 if ! $UPDATE_SYMPA ; then
    echo ""
    echo "Apache VHost directory..........: $apache_vhost_dir"
@@ -1366,7 +1388,7 @@ if ! $UPDATE_SYMPA ; then
 fi
 echo "## - Directory for init scripts........: $SYMPA_INIT_DIR" >> $_log_file
 echo "## -" >> $_log_file
-echo "## - Use systemd.......................: $SYSTEMD_EXISTS" >> $_log_file
+echo "## - Use systemd.......................: $SYSTEMD_SUPPORTED" >> $_log_file
 echo "## -" >> $_log_file
 if ! $UPDATE_SYMPA ; then
    echo "## - Apache VHost directory............: $apache_vhost_dir" >> $_log_file
@@ -1440,7 +1462,7 @@ if ! $UPDATE_SYMPA ; then
    echo "POSTFIX_CONF_DIR=$POSTFIX_CONF_DIR" >> $_log_file
 fi
 echo "" >> $_log_file
-echo "SYSTEMD_EXISTS=$SYSTEMD_EXISTS" >> $_log_file
+echo "SYSTEMD_SUPPORTED=$SYSTEMD_SUPPORTED" >> $_log_file
 
 echo "" >> $_log_file
 echo "_src_base_dir=$_src_base_dir" >> $_log_file
@@ -1785,9 +1807,9 @@ else
    echononl "\tStopping Apache Webserver .."
    _PID=`ps aux | grep "$HTTPD " | grep -e "^root" | grep -v grep | awk '{print$2}'`
    if [ -n "$_PID" ];then
-      if $SYSTEMD_EXISTS ; then
-         echo "systemctl stop apache2" >> $_log_file
-         systemctl stop apache2 >> $_log_file 2>&1
+      if $SYSTEMD_SUPPORTED ; then
+         echo "systemctl stop $APACHE_SERVICE_FILE" >> $_log_file
+         systemctl stop $APACHE_SERVICE_FILE >> $_log_file 2>&1
          if [ "$?" = "0" ]; then
             echo_ok
          else
@@ -1823,7 +1845,7 @@ else
       echo ""  >> $_log_file
       echo "## - Stopping Sympa mailing list manager .." >> $_log_file
       echo "## -" >> $_log_file
-      if $SYSTEMD_EXISTS ; then
+      if $SYSTEMD_SUPPORTED ; then
          echo "systemctl stop sympa" >> $_log_file
          systemctl stop sympa >> $_log_file 2>&1
          if [ "$?" = "0" ]; then
@@ -2109,7 +2131,7 @@ if $UPDATE_SYMPA ; then
       error "\"${SYMPA_BIN_DIR}/sympa.pl --upgrade\" failed!"
    fi
 
-   if $SYSTEMD_EXISTS ; then
+   if $SYSTEMD_SUPPORTED ; then
       echononl "\tReload systemd configuration.."
       echo "" >> $_log_file
       echo "## - Reload systemd configuration.." >> $_log_file
@@ -2503,7 +2525,7 @@ if ! $UPDATE_SYMPA ; then
 
       ## - Make Sympa mailing list manager start at boottime
       ## -
-      if $SYSTEMD_EXISTS ; then
+      if $SYSTEMD_SUPPORTED ; then
 
          echo ""  >> $_log_file
          echo "## - Eanbles sympa.service" >> $_log_file
@@ -2530,7 +2552,7 @@ if ! $UPDATE_SYMPA ; then
             echo_failed
             error "Making sympa start at boottime failed."
          fi
-      fi    # if $SYSTEMD_EXISTS
+      fi    # if $SYSTEMD_SUPPORTED
    fi    # if START_AT_BOOTTIME
 fi    # if $UPDATE_SYMPA
 
@@ -3485,7 +3507,7 @@ EOF
    echo "" >> $_log_file
    echo "## - Reload Postfix.." >> $_log_file
    echo "## -" >> $_log_file
-   if $SYSTEMD_EXISTS ; then
+   if $SYSTEMD_SUPPORTED ; then
       echo "systemctl reload postfix" >> $_log_file
       systemctl reload postfix  >> $_log_file 2>&1
       if [ "$?" = "0" ]; then
@@ -3522,7 +3544,7 @@ echo "## ---" >> $_log_file
 echo "## --- Starting Sympa mailing list manager .." >> $_log_file
 echo "## ---" >> $_log_file
 echo "" >> $_log_file
-if $SYSTEMD_EXISTS ; then
+if $SYSTEMD_SUPPORTED ; then
 
    echononl "\tReload systemd configuration"
    echo "systemctl daemon-reload" >> $_log_file
@@ -3590,9 +3612,9 @@ if $UPDATE_SYMPA ; then
    echo "" >> $_log_file
    echo "## - Start Apache Webserver.." >> $_log_file
    echo "## -" >> $_log_file
-   if $SYSTEMD_EXISTS ; then
-      echo "systemctl start apache2"  >> $_log_file
-      systemctl start apache2 >> $_log_file 2>&1
+   if $SYSTEMD_SUPPORTED ; then
+      echo "systemctl start $APACHE_SERVICE_FILE"  >> $_log_file
+      systemctl start $APACHE_SERVICE_FILE >> $_log_file 2>&1
       if [ "$?" = "0" ]; then
          echo_ok
          _apache_configtest=true