I do not use the acme container.
I have a reverse proxy via nginx and i deploy the certificate that Mailcow needs to server IMAP and SMTP and some other services that are not webservices over this script:
ln $(readlink -f /etc/letsencrypt/live/feja111.de/fullchain.pem) /opt/mailcow-dockerized/data/assets/ssl/cert.pem
ln $(readlink -f /etc/letsencrypt/live/feja111.de/privkey.pem) /opt/mailcow-dockerized/data/assets/ssl/key.pem
#cd /opt/mailcow-dockerized/ && docker restart mailcowdockerized_acme-mailcow_1 mailcowdockerized_postfix-mailcow_1 mailcowdockerized_nginx-mailcow_1
In my mailcow.conf looks it like this:
The Domain feja111.tk is a old domain that was in use.
The Cert that has to be deployed via the script has the Domain Names *.feja111.de and feja111.de.
Mailcow only needs to have this cert.