POFISH Execute docker run --rm -it --name pofish -p 80:80 -p 3333:3333 --env DOMAIN=<yourdomain> --env PUBLIC_IP=<your_public_ip> pofish start.sh Get DKIM for DNS sudo docker exec pofish cat /etc/opendkim/keys/<yourdomain>/202109.txt More info https://blog.wanetty.com/blog/tools/pofish