myvemail/build/run/bin/list-dkim

#!/usr/bin/env bash
for domain in /etc/opendkim/keys/*/default.txt
do
    # In your DNS manager, create a TXT record, enter default._domainkey in the name field
    echo -e "\n\e[1;34mUpdate DKIM TXT on DNS registrar and press any key to continue\e[5m...\e[0m"
    echo -e "\e[3m# Use default._domainkey in the host field"
    echo -e "# Check with 'opendkim-testkey -d ${domain} -s default'"
    echo -e "# Or visit https://www.dmarcanalyzer.com/dkim/dkim-checker/\e[0m"
    cat ${domain} | sed 's/.*( //' | sed 's/ ).*//' | sed 's/"//g' | sed 's/^[ \t]*//g' | sed ':a;N;$!ba;s/\n//g'
done
echo