diff --git a/postfix-relay/templates/main.cf.j2 b/postfix-relay/templates/main.cf.j2
index a27e4979..1f254efc 100644
--- a/postfix-relay/templates/main.cf.j2
+++ b/postfix-relay/templates/main.cf.j2
@@ -64,7 +64,7 @@ smtp_sasl_security_options = {{ postfix_smtp_sasl_security_options }}
 smtp_sasl_tls_security_options = {{ postfix_smtp_sasl_tls_security_options }}
 smtp_sasl_mechanism_filter = {{ postfix_smtp_sasl_mechanism_filter }}
 {% if ansible_distribution_major_version >= '18' %}
-smtpd_relay_restrictions = permit_sasl_authenticated, reject
+smtpd_relay_restrictions = permit_mynetworks, defer_unauth_destination
 {% endif %}
 {% endif %}
 {% if postfix_relay_server %}