diff --git a/templates/postfix/main.cf.j2 b/templates/postfix/main.cf.j2
index b3cbafe..407d238 100644
--- a/templates/postfix/main.cf.j2
+++ b/templates/postfix/main.cf.j2
@@ -243,7 +243,6 @@ smtpd_sender_restrictions =
 # Restrictions for submission port
 mua_sender_restrictions =
     check_sasl_access cdb:{{ postfix_conf_dir }}/permit_sasl_login_mismatch,
-    permit_mynetworks,
     check_sender_access cdb:{{ postfix_conf_dir }}/sender_checks,
     reject_non_fqdn_sender,
     reject_unknown_sender_domain,