diff --git a/mail/qmail/Makefile b/mail/qmail/Makefile
index b3ea145827cc..81c2a1db1ae0 100644
--- a/mail/qmail/Makefile
+++ b/mail/qmail/Makefile
@@ -311,7 +311,11 @@ NO_MTREE=	yes
 .include <bsd.port.pre.mk>
 
 .if ${OSVERSION} >= 900007
-EXTRA_PATCHES+=	${FILESDIR}/extra-patch-utmpx	
+. if defined(SLAVE_LDAP)
+EXTRA_PATCHES+=	${FILESDIR}/extra-patch-utmpx-ldap
+. else
+EXTRA_PATCHES+=	${FILESDIR}/extra-patch-utmpx
+. endif
 .endif
 
 .if defined(SLAVE_TLS)
diff --git a/mail/qmail/files/extra-patch-utmpx-ldap b/mail/qmail/files/extra-patch-utmpx-ldap
new file mode 100644
index 000000000000..4fd164a6bc10
--- /dev/null
+++ b/mail/qmail/files/extra-patch-utmpx-ldap
@@ -0,0 +1,65 @@
+--- qbiff.c.orig	2010-04-06 08:43:28.000000000 -0300
++++ qbiff.c	2010-04-06 08:44:35.000000000 -0300
+@@ -1,14 +1,7 @@
+ #include <sys/types.h>
+ #include <sys/stat.h>
+ #include <unistd.h>
+-#include <utmp.h>
+-#ifndef UTMP_FILE
+-#ifdef _PATH_UTMP
+-#define UTMP_FILE _PATH_UTMP
+-#else
+-#define UTMP_FILE "/etc/utmp"
+-#endif
+-#endif
++#include <utmpx.h>
+ #include "readwrite.h"
+ #include "stralloc.h"
+ #include "substdio.h"
+@@ -21,15 +14,12 @@
+ #include "env.h"
+ #include "exit.h"
+ 
+-substdio ssutmp;
+-char bufutmp[sizeof(struct utmp) * 16];
+-int fdutmp;
+ substdio sstty;
+ char buftty[1024];
+ int fdtty;
+ 
+-struct utmp ut;
+-char line[sizeof(ut.ut_line) + 1];
++struct utmpx *ut;
++char line[sizeof(ut->ut_line) + 1];
+ stralloc woof = {0};
+ stralloc tofrom = {0};
+ stralloc text = {0};
+@@ -64,7 +54,7 @@
+  if (!(user = env_get("USER"))) _exit(0);
+  if (!(sender = env_get("SENDER"))) _exit(0);
+  if (!(userext = env_get("LOCAL"))) _exit(0);
+- if (str_len(user) > sizeof(ut.ut_name)) _exit(0);
++ if (str_len(user) > sizeof(ut->ut_user)) _exit(0);
+ 
+  if (!stralloc_copys(&tofrom,"*** TO <")) _exit(0);
+  if (!stralloc_cats(&tofrom,userext)) _exit(0);
+@@ -89,15 +79,11 @@
+  if (!stralloc_cat(&woof,&text)) _exit(0);
+  if (!stralloc_cats(&woof,"\015\n")) _exit(0);
+ 
+- fdutmp = open_read(UTMP_FILE);
+- if (fdutmp == -1) _exit(0);
+- substdio_fdbuf(&ssutmp,subread,fdutmp,bufutmp,sizeof(bufutmp));
+-
+- while (substdio_get(&ssutmp,(char *)&ut,sizeof(ut)) == sizeof(ut))
+-   if (!str_diffn(ut.ut_name,user,sizeof(ut.ut_name)))
++ while ((ut = getutxent()) != NULL)
++   if (ut->ut_type == USER_PROCESS && !str_diffn(ut->ut_user,user,sizeof(ut->ut_user)))
+     {
+-     byte_copy(line,sizeof(ut.ut_line),ut.ut_line);
+-     line[sizeof(ut.ut_line)] = 0;
++     byte_copy(line,sizeof(ut->ut_line),ut->ut_line);
++     line[sizeof(ut->ut_line)] = 0;
+      if (line[0] == '/') continue;
+      if (!line[0]) continue;
+      if (line[str_chr(line,'.')]) continue;