diff -ru dist/postfix-2.0.16-20031022/src/global/mail_proto.h postfix-2.0.16-20031022/src/global/mail_proto.h
--- dist/postfix-2.0.16-20031022/src/global/mail_proto.h	Thu Dec 18 12:37:23 2003
+++ postfix-2.0.16-20031022/src/global/mail_proto.h	Thu Dec 18 12:40:43 2003
@@ -116,6 +116,9 @@
 #define MAIL_ATTR_TABLE		"table"
 #define MAIL_ATTR_KEY		"key"
 #define MAIL_ATTR_VALUE		"value"
+#ifdef USE_SASL_AUTH
+#define MAIL_ATTR_SASL_USERNAME "sasl_username"
+#endif
 
  /*
   * Suffixes for sender_name, sender_domain etc.
diff -ru dist/postfix-2.0.16-20031022/src/smtpd/smtpd_check.c postfix-2.0.16-20031022/src/smtpd/smtpd_check.c
--- dist/postfix-2.0.16-20031022/src/smtpd/smtpd_check.c	Thu Dec 18 12:37:23 2003
+++ postfix-2.0.16-20031022/src/smtpd/smtpd_check.c	Thu Dec 18 15:39:47 2003
@@ -2955,6 +2955,10 @@
 			  state->recipient ? state->recipient : "",
 			  ATTR_TYPE_STR, MAIL_ATTR_QUEUEID,
 			  state->queue_id ? state->queue_id : "",
+#ifdef USE_SASL_AUTH
+			  ATTR_TYPE_STR, MAIL_ATTR_SASL_USERNAME,
+			  (var_smtpd_sasl_enable && state->sasl_username) ? state->sasl_username : "",
+#endif
 			  ATTR_TYPE_END,
 			  ATTR_FLAG_MISSING,	/* Reply attributes. */
 			  ATTR_TYPE_STR, MAIL_ATTR_ACTION, action,