diff --git a/data/conf/postfix/main.cf b/data/conf/postfix/main.cf
index 0990f41c..e51219ae 100644
--- a/data/conf/postfix/main.cf
+++ b/data/conf/postfix/main.cf
@@ -118,7 +118,6 @@ smtpd_recipient_restrictions = permit_sasl_authenticated,
   permit_mynetworks,
   check_recipient_access proxy:mysql:/opt/postfix/conf/sql/mysql_tls_enforce_in_policy.cf,
   reject_invalid_helo_hostname,
-  reject_unknown_reverse_client_hostname,
   reject_unauth_destination
 smtpd_sasl_auth_enable = yes
 smtpd_sasl_authenticated_header = yes