added mailserver network to all containers

compose.yml

@@ -2,6 +2,8 @@ services:
   redis:
     image: redis:latest
     container_name: lachaussettedebraspartsfr_redis
+    networks:
+      - mailserver
     volumes:
       - ./volumes/redis:/data
     command: redis-server --appendonly yes
@@ -9,6 +11,8 @@ services:
   mariadb:
     image: mariadb:latest
     container_name: lachaussettedebraspartsfr_mariadb
+    networks:
+      - mailserver
     env_file:
       - .env
       - ../passwords/lachaussettedebraspartsfr.pass