Dovecot not using proper certificate, but Postfix does about docker-mailserver-traefik

[youtous]

Hello,
I tried to reproduce using the test suite but I was not able to achieve the described situation.
Could you share your docker-compose.yml?

Thanks

[logoff]

This is my docker-compose.yml file:

version: '3'

services:

  cert-renewer-traefik:
    image: youtous/mailserver-traefik:latest
    container_name: "mailserver-traefik"
    networks:
      - web
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - <my-services-folder>/traefik/acme.json:/tmp/traefik/acme.json:ro # link traefik acme.json file (read-only)
    environment:
      - TRAEFIK_VERSION=2
      - CERTS_SOURCE=file
      - DOMAINS=${HOSTNAME}.${DOMAINNAME}

  mail:
    image: tvial/docker-mailserver:latest
    hostname: ${HOSTNAME}
    domainname: ${DOMAINNAME}
    container_name: ${CONTAINER_NAME}
    ports:
      - "25:25"
      - "143:143"
      - 465:465
      - "587:587"
      - "993:993"
    volumes:
      - maildata:/var/mail
      - mailstate:/var/mail-state
      - maillogs:/var/log/mail
      - ./config/:/tmp/docker-mailserver/
    env_file:
      - .env
      - env-mailserver
    labels:
      - "mailserver-traefik.renew.domain=${HOSTNAME}.${DOMAINNAME}" # tag the service 
      - "traefik.enable=true" # use traefik v2 for certificate generation
      - "traefik.port=443" # dummy port, required generating certs with traefik
      - "traefik.http.routers.mail.rule=Host(`${HOSTNAME}.${DOMAINNAME}`)"
      - "traefik.http.routers.mail.entrypoints=https"
      - "traefik.http.routers.mail.tls=true"
      - "traefik.http.routers.mail.tls.certresolver=le"
      - "traefik.http.routers.mail.middlewares=redirect-webmail@docker" # /!\ the router must redirect every requests.
      - "traefik.http.middlewares.redirect-webmail.redirectregex.regex=.*"
      - "traefik.http.middlewares.redirect-webmail.redirectregex.replacement=https://${HOSTNAME}.${DOMAINNAME}/"
    
    environment:
      - SSL_TYPE=manual # enable SSL on the *mailserver* and store certificates in pre-defined paths
      - SSL_CERT_PATH=/var/mail-state/manual-ssl/cert # don't change theses paths!
      - SSL_KEY_PATH=/var/mail-state/manual-ssl/key
    cap_add:
      - NET_ADMIN
      - SYS_PTRACE
    restart: always
    networks:
      - web

  roundcube:
      image: "roundcube/roundcubemail"
      container_name: "roundcube"
      restart: always
      networks:
        - web
      environment:
        - ROUNDCUBEMAIL_DEFAULT_HOST=tls://${HOSTNAME}.${DOMAINNAME}:993/
        - ROUNDCUBEMAIL_SMTP_SERVER=tls://${HOSTNAME}.${DOMAINNAME}:465/
      labels:
        - traefik.http.routers.roundcube.rule=Host(`${HOSTNAME}.${DOMAINNAME}`)
        - traefik.http.routers.roundcube.tls=true
        - traefik.http.routers.roundcube.tls.certresolver=le
        - traefik.http.middlewares.roundcube.compress=true
        - traefik.http.routers.roundcube.middlewares=roundcube@docker

volumes:
  maildata:
    driver: local
  mailstate:
    driver: local
  maillogs:
    driver: local

networks:
  web:
    external: true

web is the network where Traefik lives.