diff -ur postfix-3.0.2.orig/src/global/mail_params.c postfix-3.0.2/src/global/mail_params.c
--- postfix-3.0.2.orig/src/global/mail_params.c	2015-01-27 19:27:44.000000000 +0000
+++ postfix-3.0.2/src/global/mail_params.c	2015-07-25 15:55:35.700514288 +0000
@@ -83,6 +83,7 @@
 /*	char	*var_debug_peer_list;
 /*	int	var_debug_peer_level;
 /*	int	var_in_flow_delay;
+/*	char	*var_reject_reply_msg_access_denied;
 /*	int	var_fault_inj_code;
 /*	char   *var_bounce_service;
 /*	char   *var_cleanup_service;
@@ -304,6 +305,7 @@
 char   *var_export_environ;
 char   *var_debug_peer_list;
 int     var_debug_peer_level;
+char	*var_reject_reply_msg_access_denied;
 int     var_fault_inj_code;
 char   *var_bounce_service;
 char   *var_cleanup_service;
@@ -762,6 +764,7 @@
 	VAR_SMTPUTF8_AUTOCLASS, DEF_SMTPUTF8_AUTOCLASS, &var_smtputf8_autoclass, 1, 0,
 	VAR_DROP_HDRS, DEF_DROP_HDRS, &var_drop_hdrs, 0, 0,
 	VAR_INFO_LOG_ADDR_FORM, DEF_INFO_LOG_ADDR_FORM, &var_info_log_addr_form, 1, 0,
+	VAR_REJECT_REPLY_MSG_ACCESS_DENIED, DEF_REJECT_REPLY_MSG_ACCESS_DENIED, &var_reject_reply_msg_access_denied, 1, 0,
 	0,
     };
     static const CONFIG_STR_FN_TABLE function_str_defaults_2[] = {
diff -ur postfix-3.0.2.orig/src/global/mail_params.h postfix-3.0.2/src/global/mail_params.h
--- postfix-3.0.2.orig/src/global/mail_params.h	2015-07-25 15:53:06.000000000 +0000
+++ postfix-3.0.2/src/global/mail_params.h	2015-07-25 15:55:35.696514288 +0000
@@ -3908,6 +3908,13 @@
 					MAIL_SRC_NAME_VERIFY
 extern char *var_smtputf8_autoclass;
 
+ /*
+  * SMTPD messages
+  */
+#define VAR_REJECT_REPLY_MSG_ACCESS_DENIED	"smtpd_reject_msg_access_denied"
+#define DEF_REJECT_REPLY_MSG_ACCESS_DENIED	"rejected: Relay access denied."
+extern char *var_reject_reply_msg_access_denied;
+
 /* LICENSE
 /* .ad
 /* .fi
diff -ur postfix-3.0.2.orig/src/smtpd/smtpd.c postfix-3.0.2/src/smtpd/smtpd.c
--- postfix-3.0.2.orig/src/smtpd/smtpd.c	2015-07-19 22:34:26.000000000 +0000
+++ postfix-3.0.2/src/smtpd/smtpd.c	2015-07-25 15:55:35.699514288 +0000
@@ -5751,6 +5751,7 @@
 	VAR_MILT_DAEMON_NAME, DEF_MILT_DAEMON_NAME, &var_milt_daemon_name, 1, 0,
 	VAR_MILT_V, DEF_MILT_V, &var_milt_v, 1, 0,
 	VAR_STRESS, DEF_STRESS, &var_stress, 0, 0,
+	VAR_REJECT_REPLY_MSG_ACCESS_DENIED, DEF_REJECT_REPLY_MSG_ACCESS_DENIED, &var_reject_reply_msg_access_denied, 1, 0,
 	VAR_UNV_FROM_WHY, DEF_UNV_FROM_WHY, &var_unv_from_why, 0, 0,
 	VAR_UNV_RCPT_WHY, DEF_UNV_RCPT_WHY, &var_unv_rcpt_why, 0, 0,
 	VAR_REJECT_TMPF_ACT, DEF_REJECT_TMPF_ACT, &var_reject_tmpf_act, 1, 0,