fix(mailserver): : add extra_hosts to prevent IMAP connections from closing

docker-compose.yml

@@ -2,6 +2,8 @@ services:
   mailserver:
     image: analogic/poste.io:latest
     hostname: ${MAIL_HOSTNAME}
+    extra_hosts:
+      - "${MAIL_HOSTNAME}:127.0.0.1"
     restart: always
     ports:
       - "25:25"
@@ -30,6 +32,8 @@ services:
   caddy:
     image: caddy:latest
     restart: always
+    env_file:
+      - .env
     ports:
       - "80:80"
       - "443:443"