Error redirection fail with bind - dig

I'm trying to test some nameservers against a domain name. For that, I created a script that reads a list of nameservers and asks for a domain name. Something basic like this: #!/bin/bash domain=$1 [ -z $domain ] && read -p "DOMAIN NAME: " domain namefile="./nameserver" echo "RESULT - NAMESERVER DOMAIN IP" for host in $(cat "$namefile"); do IPADD=$(dig +short "$host" "$domain" A 2> /dev/null) [[ ! -z $IPADD ]] && result="OK" || result="FAIL" echo "$result - Nameserver: $host - Domain: $domain - IP answer: $IPADD" done The issue I'm having is that, when Dig fails, it is not redirecting errors to null. Thus, the $IPADD variable receives a wrong value. # CORRECT nameserver # dig +short @8.8.8.8 google.com A 2> /dev/null 142.250.218.206 --- # WRONG nameserver # dig +short @8.8.8.80 google.com A 2> /dev/null ;; connection timed out; no servers could be reached If I test it with a wrong nameserver address, I still get an error message, like shown above. As I understand, when redirecting to null, it should **not** display that error message. Any idea? Thank you.