####Commands to execute: sudo docker compose up ##### prompts for user account creation sudo docker exec -ti mailserver setup email add arul@arulbalaji.xyz #####To generate DKIM sudo docker exec -ti mailserver setup config dkim #####copy the DKIM to add it in DNS Records cat docker-data/dms/config/opendkim/keys/example.com/mail.txt #####To run the container docker run --rm -it \ -v "${PWD}/docker-data/certbot/certs/:/etc/letsencrypt/" \ -v "${PWD}/docker-data/certbot/logs/:/var/log/letsencrypt/" \ -p 80:80 \ certbot/certbot certonly --standalone -d mailer.arulbalaji.xyz