diff --git a/docker/infrastructure/mail/stalwart/docker-compose.yml b/docker/infrastructure/mail/stalwart/docker-compose.yml
index 024b671..734c62f 100644
--- a/docker/infrastructure/mail/stalwart/docker-compose.yml
+++ b/docker/infrastructure/mail/stalwart/docker-compose.yml
@@ -8,11 +8,19 @@ services:
     volumes:
       - stalwart_data:/opt/stalwart
     ports:
-      - "25:25" # SMTP port
-      - "465:465" # SMTPS port
-      - "993:993" # IMAPS port
-      - "587:587" # SMTP Submission STARTTLS
-      - "8080" # HTTP port
+      - target: 25
+        published: 25
+        mode: host
+      - target: 465
+        published: 465
+        mode: host
+      - target: 993
+        published: 993
+        mode: host
+      - target: 587
+        published: 587
+        mode: host
+      - "8080"
     labels:
       - "traefik.enable=true"
       - "traefik.http.routers.stalwart.rule=Host(`mail.vhaudiquet.fr`)"