[Update] Crit fix for missing vars

update.sh

@@ -6,7 +6,7 @@ done
 
 [[ ! -f mailcow.conf ]] && { echo "mailcow.conf is missing"; exit 1;}
 
-CONFIG_ARRAY=("SKIP_LETS_ENCRYPT" "USE_WATCHDOG" "WATCHDOG_NOTIFY_EMAIL" "SKIP_CLAMD" "SKIP_IP_CHECK" "SKIP_FAIL2BAN" "ADDITIONAL_SAN" "DOVEADM_PORT")
+CONFIG_ARRAY=("SKIP_LETS_ENCRYPT" "USE_WATCHDOG" "WATCHDOG_NOTIFY_EMAIL" "SKIP_CLAMD" "SKIP_IP_CHECK" "SKIP_FAIL2BAN" "ADDITIONAL_SAN" "DOVEADM_PORT" "IPV4_NETWORK" "IPV6_NETWORK" "IPV6_NETWORK")
 sed -i '$a\' mailcow.conf
 for option in ${CONFIG_ARRAY[@]}; do
   if [[ ${option} == "ADDITIONAL_SAN" ]]; then