diff --git a/defaults/main.yml b/defaults/main.yml
index fc0d0d8..7d9fa05 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -20,7 +20,6 @@ dovecot_container: dovecot
 # puertos públicos
 postfix_publish_ports:
   - "25:25"
-  - "587:587"
 
 # directorio con reglas, relativo al volumen
 postfix_rules_dir: rules
@@ -76,7 +75,7 @@ postfix_sqlite_alias_query: "SELECT dest FROM aliases WHERE alias = '%s'"
 # -----------------------------------------------------------------------------
 
 # enable submission service?
-postfix_submission_enable: yes
+postfix_submission_enable: no
 
 # TLS -------------------------------------------------------------------------