for domain in `echo "$QUERY1" | mysql -N -s -u $USER -p$PASS $DBNAME -h$HOST | awk '{print $1}'; do
    lookup=$(dig $domain ns +short)
    if [[ "$lookup" =~ 'XXX' ]]; then
        our=1
        break
    else
        our=0
        break
    fi
done

mysql --silent --skip-column-names
    --user="$USER" --password="$PASSWORD"
    --host="$HOST" --database="$DBNAME"
    --execute="$QUERY1" |
awk '{ printf("%s ns +shortn", $1) }' |
if dig -f - | grep -q "XXX"; then
    our=1
else
    our=0
fi

SELECT CONCAT(column, " ns +short") FROM ...