diff --git a/compose.yml b/compose.yml
index 2e945a5..76c6a5f 100644
--- a/compose.yml
+++ b/compose.yml
@@ -2,6 +2,8 @@ services:
   mariadb:
     image: mariadb:latest
     container_name: dolinetignet_mariadb
+    networks:
+      - mailserver
     env_file:
       - .env
       - ../passwords/dolinetignet.pass
@@ -17,6 +19,8 @@ services:
   dolibarr:
     image: tuxgasy/dolibarr
     container_name: dolinetignet_dolibarr
+    networks:
+      - mailserver
     depends_on:
       - mariadb
     env_file:
@@ -28,3 +32,6 @@ services:
       - ./volumes/dolibarr/custom:/var/www/html/custom
       - ./volumes/dolibarr/documents:/var/www/documents
     restart: unless-stopped
+networks:
+  mailserver:
+    external: true