diff --git a/defaults/main.yml b/defaults/main.yml
index 7d9fa05..63b1c39 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -75,7 +75,7 @@ postfix_sqlite_alias_query: "SELECT dest FROM aliases WHERE alias = '%s'"
 # -----------------------------------------------------------------------------
 
 # enable submission service?
-postfix_submission_enable: no
+postfix_submission_enable: yes
 
 # TLS -------------------------------------------------------------------------