--- qmail-1.03.orig/qmail-smtpd.c	Fri Mar  2 00:14:19 2007
+++ qmail-1.03/qmail-smtpd.c	Fri Mar  2 00:21:10 2007
@@ -56,6 +56,7 @@
 void err_size() { out("552 sorry, that message size exceeds my databytes limit (#5.3.4)\r\n"); }
 void err_bmf() { out("553 sorry, your envelope sender is in my badmailfrom list (#5.7.1)\r\n"); }
 void err_bmt() { out("553 sorry, your envelope sender is in my badmailto list (#5.7.1)\r\n"); }
+void err_brt() { out("553 sorry, this recipient is in my badrecipientto list (#5.7.1)\r\n"); }
 void err_nogateway() { out("553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)\r\n"); }
 void err_unimpl() { out("502 unimplemented (#5.5.1)\r\n"); }
 void err_syntax() { out("555 syntax error (#5.5.4)\r\n"); }
@@ -115,6 +116,9 @@
 int bmtok = 0;
 stralloc bmt = {0};
 struct constmap mapbmt;
+int brtok = 0;
+stralloc brt = {0};
+struct constmap mapbrt;
 
 void setup()
 {
@@ -134,6 +138,11 @@
   if (bmfok == -1) die_control();
   if (bmfok)
     if (!constmap_init(&mapbmf,bmf.s,bmf.len,0)) die_nomem();
+
+  brtok = control_readfile(&brt,"control/badrcptto",0);
+  if (brtok == -1) die_control();
+  if (brtok)
+    if (!constmap_init(&mapbrt,brt.s,brt.len,0)) die_nomem();
  
   bmtok = control_readfile(&bmt,"control/badmailto",0);
   if (bmtok == -1) die_control();
@@ -242,6 +251,17 @@
   return 0;
 }
 
+int brtcheck()
+{
+  int j;
+  if (!brtok) return 0;
+  if (constmap(&mapbrt,addr.s,addr.len - 1)) return 1;
+  j = byte_rchr(addr.s,addr.len,'@');
+  if (j < addr.len)
+    if (constmap(&mapbrt,addr.s + j,addr.len - j - 1)) return 1;
+  return 0;
+}
+
 int addrallowed()
 {
   int r;
@@ -369,6 +389,7 @@
   }
   else
     if (!addrallowed()) { err_nogateway(); return; }
+  if (!env_get("RELAYCLIENT") && brtcheck()) { err_brt(); return; }
   if (!stralloc_cats(&rcptto,"T")) die_nomem();
   if (!stralloc_cats(&rcptto,addr.s)) die_nomem();
   if (!stralloc_0(&rcptto)) die_nomem();