# diff -C 4 -c qmail-smtpd.c qmail-smtpd.c.new 
*** qmail-smtpd.c       Thu Nov  2 10:13:38 2000
--- qmail-smtpd.c.new   Thu Nov  2 13:15:04 2000
***************
*** 26,33 ****
--- 26,35 ----
  
  #define MAXHOPS 100
  unsigned int databytes = 0;
  int timeout = 1200;
+ int rcptcounter = 0;
+ int maxrcpt = -1;
  
  int safewrite(fd,buf,len) int fd; char *buf; int len;
  {
    int r;
***************
*** 108,115 ****
--- 110,118 ----
    liphostok = control_rldef(&liphost,"control/localiphost",1,(char *) 0);
    if (liphostok == -1) die_control();
    if (control_readint(&timeout,"control/timeoutsmtpd") == -1) die_control();
    if (timeout <= 0) timeout = 1;
+   if (control_readint(&maxrcpt,"control/maxrcpt") == -1) die_control();
  
    if (rcpthosts_init() == -1) die_control();
  
    bmfok = control_readfile(&bmf,"control/badmailfrom",0);
***************
*** 238,245 ****
--- 241,249 ----
    out("250 flushed\r\n");
  }
  void smtp_mail(arg) char *arg;
  {
+   rcptcounter = 0 ;
    if (!addrparse(arg)) { err_syntax(); return; }
    flagbarf = bmfcheck();
    seenmail = 1;
    if (!stralloc_copys(&rcptto,"")) die_nomem();
***************
*** 247,255 ****
--- 251,261 ----
    if (!stralloc_0(&mailfrom)) die_nomem();
    out("250 ok\r\n");
  }
  void smtp_rcpt(arg) char *arg; {
+   rcptcounter++;
    if (!seenmail) { err_wantmail(); return; }
+   if (checkrcptcount() == 1) { err_syntax(); return; }
    if (!addrparse(arg)) { err_syntax(); return; }
    if (flagbarf) { err_bmf(); return; }
    if (relayclient) {
      --addr.len;
***************
*** 417,421 ****
--- 423,433 ----
    smtp_greet("220 ");
    out(" ESMTP\r\n");
    if (commands(&ssin,&smtpcommands) == 0) die_read();
    die_nomem();
+ }
+ 
+ int checkrcptcount() {
+   if (maxrcpt == -1) { return 0;}
+   else if (rcptcounter > maxrcpt ) { return 1;}
+   return 0;
  }