Check that spamassassin is installed

src/freedombone

     apt-get -y install exim4-daemon-heavy
     apt-get -y install spamassassin
     sa-update -v
+    if [ ! -f /etc/default/spamassassin ]; then
+        echo 'Spamassassin was not installed'
+        exit 72570
+    fi
     sed -i 's/ENABLED=0/ENABLED=1/g' /etc/default/spamassassin
     sed -i 's/# spamd_address = 127.0.0.1 783/spamd_address = 127.0.0.1 783/g' /etc/exim4/exim4.conf.template
     # This configuration is based on https://wiki.debian.org/DebianSpamAssassin
     # this must be accessible by root
     chown -R $MY_USERNAME:root /home/$MY_USERNAME/.spamassassin
 
-    service spamassassin restart
-    service exim4 restart
-    service cron restart
+    systemctl restart spamassassin
+    systemctl restart exim4
+    systemctl restart cron
 
     echo 'spam_filtering' >> $COMPLETION_FILE
 }
         if grep -q "Nginx-ensite commit" $COMPLETION_FILE; then
             CURRENT_NGINX_ENSITE_COMMIT=$(grep "Nginx-ensite commit" $COMPLETION_FILE | awk -F ':' '{print $2}')
             if [[ "$CURRENT_NGINX_ENSITE_COMMIT" != "$NGINX_ENSITE_COMMIT" ]]; then
-				$INSTALL_DIR/nginx_ensite
+                $INSTALL_DIR/nginx_ensite
                 git stash
                 git checkout master
                 git pull