My poste.io configuration together with my xnmp-vhosts docker and letsencrypt certificates
XNMP-VHOST
And part configuration from my other Docker Composer.
Follow my guide here: XNMP-VHOSTS
My custom Docker build with Letsencrypt inside
My Poste.io
docker-compose exec mailserver bash
inside mailserver terminal
This make sure mail
user have read/write access to root
files, so it can read letsencrypt files
Restart Docker
docker-compose restart mailserver