chore: upgrade docker-mailserver to latest version

mail/docker-compose.yml

@@ -1,17 +1,19 @@
 ---
-version: '3.7'
+version: '3.9'
 services:
   mail:
-    image: mailserver/docker-mailserver:11.3.1
+    image: mailserver/docker-mailserver:12.1.0
     hostname: ${HOSTNAME}
     domainname: ${DOMAINNAME}
     container_name: ${CONTAINER_NAME}
-    restart: always
+    restart: unless-stopped
+    stop_grace_period: 2m30s # Avoid data loss
     ports:
       - "25:25"
       - "143:143"
       - "587:587"
       - "993:993"
+      # - "127.0.0.1:1134:1134" # Only useful once we enable RSPAMD
     volumes:
       - maildata:/var/mail
       - mailstate:/var/mail-state
@@ -26,10 +28,15 @@ services:
       - SYS_PTRACE
     networks:
       - internal
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "10m"
+        max-file: "3"
 
   roundcubedb:
     image: postgres:9.6-alpine
-    restart: always
+    restart: unless-stopped
     env_file:
       - .env
       - env-roundcube
@@ -37,10 +44,15 @@ services:
       - rb_db:/var/lib/postgresql/data/
     networks:
       - internal
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "5m"
+        max-file: "3"
 
   roundcube:
     image: roundcube/roundcubemail:1.6.x-apache
-    restart: always
+    restart: unless-stopped
     depends_on:
       - mail
       - roundcubedb
@@ -52,6 +64,11 @@ services:
     networks:
       - proxy
       - internal
+    logging:
+      driver: "json-file"
+      options:
+        max-size: "10m"
+        max-file: "3"
 
 volumes:
   maildata: