diff --git a/defaults/main.yml b/defaults/main.yml
index 63b1c39..fc0d0d8 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -20,6 +20,7 @@ dovecot_container: dovecot
 # puertos públicos
 postfix_publish_ports:
   - "25:25"
+  - "587:587"
 
 # directorio con reglas, relativo al volumen
 postfix_rules_dir: rules
diff --git a/tasks/main.yml b/tasks/main.yml
index 1b1d2f6..6f9dd86 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -9,7 +9,7 @@
       - "{{ postfix_volume }}:/etc/postfix"
       - "{{ postfix_volume_ssl }}:/ssl"
     networks:
-      - name: "{{ docker_network_name }}"
+      - name: "{{ docker_network }}"
     ports: "{{ postfix_publish_ports }}"
     env:
       MYDESTINATION: >-