diff --git a/postfix/attributes/default.rb b/postfix/attributes/default.rb
index 8837788c8..ffad8b830 100644
--- a/postfix/attributes/default.rb
+++ b/postfix/attributes/default.rb
@@ -3,4 +3,4 @@
 set_unless['postfix']['relay']   = { 'user' => 'foo@example.org', 'pass' => 'test123', 'host' => nil, 'full_host' => nil }
 set_unless['postfix']['aliases'] = %w(postmaster mailer-daemon www-data)
 #if true: rewrites all from addresses to sysadmin_mail
-set_unless['postfix']['rewrite_address'] = false
+set_unless['postfix']['rewrite_address'] = true