How to use multiple DKIM records on a single domain

## run as is if you miss the asterisk you will have to create that keys folder with correct owner
rm -rf /etc/opendkim/keys/*

https://community.cyberpanel.net/t/how-to-manually-set-up-spf-dkim-and-dmarc-inside-cyberpanel/30666#installing-and-setting-up-opendkim-4