diff --git a/smmapdfw/config.h.in b/smmapdfw/config.h.in
index 587f6a2..28b62e6 100644
--- a/smmapdfw/config.h.in
+++ b/smmapdfw/config.h.in
@@ -33,6 +33,9 @@
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 
+/* Define to 1 if you have the `djbdns' library (-ldjbdns). */
+#undef HAVE_LIBDJBDNS
+
 /* Define to 1 if you have the `dl' library (-ldl). */
 #undef HAVE_LIBDL
 
diff --git a/smmapdfw/configure b/smmapdfw/configure
index 418a441..3e91d08 100755
--- a/smmapdfw/configure
+++ b/smmapdfw/configure
@@ -1041,6 +1041,8 @@ Optional Packages:
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
   --with-bdb-lib-dir      Directory for Berkeley DB library files
   --with-bdb-inc-dir      Directory for Berkeley include files
+  --with-djbdns-lib-dir   Directory for Bernstein's djbdns library files
+  --with-djbdns-inc-dir   Directory for Bernstein's djbdns include files
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
   --with-pic              try to use only PIC/non-PIC objects [default=use
                           both]
@@ -1880,6 +1882,41 @@ echo "$as_me: error: Need bdb-inc-dir" >&2;}
 
 fi;
 
+WITHOUT_DJBDNS=0
+
+# Check whether --with-djbdns-lib-dir or --without-djbdns-lib-dir was given.
+if test "${with_djbdns_lib_dir+set}" = set; then
+  withval="$with_djbdns_lib_dir"
+   case "$withval" in
+                no)
+		  WITHOUT_DJBDNS=1
+                  ;;
+                yes)
+                  ;;
+                *)
+                  LDFLAGS="$LDFLAGS -L$withval -R$withval"
+                  ;;
+            esac
+
+fi;
+
+
+# Check whether --with-djbdns-inc-dir or --without-djbdns-inc-dir was given.
+if test "${with_djbdns_inc_dir+set}" = set; then
+  withval="$with_djbdns_inc_dir"
+   case "$withval" in
+                no)
+                  WITHOUT_DJBDNS=1
+                  ;;
+                yes)
+                  ;;
+                *)
+                  CPPFLAGS="$CPPFLAGS -I$withval"
+                  ;;
+            esac
+
+fi;
+
 
 ENABLE_VERIFY_CACHE=1
 
@@ -3412,7 +3449,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 3415 "configure"' > conftest.$ac_ext
+  echo '#line 3452 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -4867,7 +4904,7 @@ fi
 
 
 # Provide some information about the compiler.
-echo "$as_me:4870:" \
+echo "$as_me:4907:" \
      "checking for Fortran 77 compiler version" >&5
 ac_compiler=`set X $ac_compile; echo $2`
 { (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
@@ -5899,11 +5936,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:5902: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:5939: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:5906: \$? = $ac_status" >&5
+   echo "$as_me:5943: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -6132,11 +6169,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:6135: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:6172: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:6139: \$? = $ac_status" >&5
+   echo "$as_me:6176: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -6192,11 +6229,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:6195: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:6232: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:6199: \$? = $ac_status" >&5
+   echo "$as_me:6236: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -8380,7 +8417,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 8383 "configure"
+#line 8420 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -8478,7 +8515,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 8481 "configure"
+#line 8518 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10655,11 +10692,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:10658: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:10695: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:10662: \$? = $ac_status" >&5
+   echo "$as_me:10699: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -10715,11 +10752,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:10718: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:10755: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:10722: \$? = $ac_status" >&5
+   echo "$as_me:10759: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -12084,7 +12121,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 12087 "configure"
+#line 12124 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12182,7 +12219,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 12185 "configure"
+#line 12222 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13009,11 +13046,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:13012: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:13049: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:13016: \$? = $ac_status" >&5
+   echo "$as_me:13053: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -13069,11 +13106,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:13072: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:13109: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:13076: \$? = $ac_status" >&5
+   echo "$as_me:13113: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -15114,11 +15151,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:15117: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:15154: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:15121: \$? = $ac_status" >&5
+   echo "$as_me:15158: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -15347,11 +15384,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:15350: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:15387: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:15354: \$? = $ac_status" >&5
+   echo "$as_me:15391: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -15407,11 +15444,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:15410: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:15447: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:15414: \$? = $ac_status" >&5
+   echo "$as_me:15451: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -17595,7 +17632,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 17598 "configure"
+#line 17635 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -17693,7 +17730,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 17696 "configure"
+#line 17733 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -19101,6 +19138,81 @@ fi
 fi
 
 
+if test "x$WITHOUT_DJBDNS" = "x0"; then
+
+echo "$as_me:$LINENO: checking for dns_transmit_start in -ldjbdns" >&5
+echo $ECHO_N "checking for dns_transmit_start in -ldjbdns... $ECHO_C" >&6
+if test "${ac_cv_lib_djbdns_dns_transmit_start+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldjbdns  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char dns_transmit_start ();
+int
+main ()
+{
+dns_transmit_start ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_djbdns_dns_transmit_start=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_djbdns_dns_transmit_start=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_djbdns_dns_transmit_start" >&5
+echo "${ECHO_T}$ac_cv_lib_djbdns_dns_transmit_start" >&6
+if test $ac_cv_lib_djbdns_dns_transmit_start = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBDJBDNS 1
+_ACEOF
+
+  LIBS="-ldjbdns $LIBS"
+
+fi
+
+fi
 
 
 echo "$as_me:$LINENO: checking for inet_aton in -lresolv" >&5
diff --git a/smmapdfw/configure.ac b/smmapdfw/configure.ac
index 59db827..fa6b59f 100644
--- a/smmapdfw/configure.ac
+++ b/smmapdfw/configure.ac
@@ -44,6 +44,37 @@ AC_ARG_WITH(bdb-inc-dir,
             esac ]
 )
 
+WITHOUT_DJBDNS=0
+AC_ARG_WITH(djbdns-lib-dir,
+            [AC_HELP_STRING(--with-djbdns-lib-dir, [
+                            Directory for Bernstein's djbdns library files])],
+            [ case "$withval" in
+                no)
+		  WITHOUT_DJBDNS=1
+                  ;;
+                yes)
+                  ;;
+                *)
+                  LDFLAGS="$LDFLAGS -L$withval -R$withval"
+                  ;;
+            esac ]
+)
+
+AC_ARG_WITH(djbdns-inc-dir,
+            [AC_HELP_STRING(--with-djbdns-inc-dir, [
+                            Directory for Bernstein's djbdns include files])],
+            [ case "$withval" in
+                no)
+                  WITHOUT_DJBDNS=1
+                  ;;
+                yes)
+                  ;;
+                *)
+                  CPPFLAGS="$CPPFLAGS -I$withval"
+                  ;;
+            esac ]
+)
+
 
 ENABLE_VERIFY_CACHE=1
 dnl AC_ARG_ENABLE(verify-cache, 
@@ -100,6 +131,9 @@ AC_CHECK_LIB(pthread, pthread_create,
              )
 )
 
+if test "x$WITHOUT_DJBDNS" = "x0"; then
+AC_CHECK_LIB([djbdns], [dns_transmit_start])
+fi
 
 AC_CHECK_LIB([resolv], [inet_aton])
 AC_CHECK_LIB([socket], [connect])
diff --git a/smmapdfw/cyrus_worker/cyrus_worker.c b/smmapdfw/cyrus_worker/cyrus_worker.c
index c7eebbf..caaad14 100644
--- a/smmapdfw/cyrus_worker/cyrus_worker.c
+++ b/smmapdfw/cyrus_worker/cyrus_worker.c
@@ -26,7 +26,7 @@
 #include "smmapd.h"
 
 #include "smtp.h"
-#include "dns.h"
+#include "htdns.h"
 
 #define SMM_LOCAL_PERM_NOK 101
 #define SMM_LOCAL_TEMP_NOK 102
diff --git a/smmapdfw/libsmmapdfw/Makefile.am b/smmapdfw/libsmmapdfw/Makefile.am
index 8064366..56b1349 100644
--- a/smmapdfw/libsmmapdfw/Makefile.am
+++ b/smmapdfw/libsmmapdfw/Makefile.am
@@ -1,5 +1,5 @@
-include_HEADERS=containers_public.h queue.h smtp.h cfg.h count.h safe_write.h sunos_comp.h dns.h smmapd.h
+include_HEADERS=containers_public.h queue.h smtp.h cfg.h count.h safe_write.h sunos_comp.h htdns.h smmapd.h
 lib_LTLIBRARIES = libsmmapdfw.la
-libsmmapdfw_la_SOURCES = cfg.c queue.c count.c safe_write.c config_public.c dns.c smtp.c
+libsmmapdfw_la_SOURCES = cfg.c queue.c count.c safe_write.c config_public.c htdns.c smtp.c
 
 
diff --git a/smmapdfw/libsmmapdfw/Makefile.in b/smmapdfw/libsmmapdfw/Makefile.in
index 528c861..f314cf7 100644
--- a/smmapdfw/libsmmapdfw/Makefile.in
+++ b/smmapdfw/libsmmapdfw/Makefile.in
@@ -87,9 +87,9 @@ RC = @RC@
 STRIP = @STRIP@
 VERSION = @VERSION@
 
-include_HEADERS = containers_public.h queue.h smtp.h cfg.h count.h safe_write.h sunos_comp.h dns.h smmapd.h
+include_HEADERS = containers_public.h queue.h smtp.h cfg.h count.h safe_write.h sunos_comp.h htdns.h smmapd.h
 lib_LTLIBRARIES = libsmmapdfw.la
-libsmmapdfw_la_SOURCES = cfg.c queue.c count.c safe_write.c config_public.c dns.c smtp.c
+libsmmapdfw_la_SOURCES = cfg.c queue.c count.c safe_write.c config_public.c htdns.c smtp.c
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = ../config.h
 CONFIG_CLEAN_FILES = 
@@ -103,7 +103,7 @@ LIBS = @LIBS@
 libsmmapdfw_la_LDFLAGS = 
 libsmmapdfw_la_LIBADD = 
 libsmmapdfw_la_OBJECTS =  cfg.lo queue.lo count.lo safe_write.lo \
-config_public.lo dns.lo smtp.lo
+config_public.lo htdns.lo smtp.lo
 CFLAGS = @CFLAGS@
 COMPILE = $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
 LTCOMPILE = $(LIBTOOL) --mode=compile $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
@@ -118,8 +118,8 @@ DISTFILES = $(DIST_COMMON) $(SOURCES) $(HEADERS) $(TEXINFOS) $(EXTRA_DIST)
 
 TAR = tar
 GZIP_ENV = --best
-DEP_FILES =  .deps/cfg.P .deps/config_public.P .deps/count.P .deps/dns.P \
-.deps/queue.P .deps/safe_write.P .deps/smtp.P
+DEP_FILES =  .deps/cfg.P .deps/config_public.P .deps/count.P \
+.deps/htdns.P .deps/queue.P .deps/safe_write.P .deps/smtp.P
 SOURCES = $(libsmmapdfw_la_SOURCES)
 OBJECTS = $(libsmmapdfw_la_OBJECTS)
 
diff --git a/smmapdfw/libsmmapdfw/dns.c b/smmapdfw/libsmmapdfw/htdns.c
similarity index 79%
rename from smmapdfw/libsmmapdfw/dns.c
rename to smmapdfw/libsmmapdfw/htdns.c
index 71d5f48..008b754 100644
--- a/smmapdfw/libsmmapdfw/dns.c
+++ b/smmapdfw/libsmmapdfw/htdns.c
@@ -23,7 +23,6 @@
 #include <sys/types.h>
 #include <netinet/in.h>
 #include <arpa/nameser.h>
-#include <resolv.h>
 #include <stdlib.h>
 #include <syslog.h>
 #include <stdio.h>
@@ -32,10 +31,18 @@
 #include <errno.h>
 #include <assert.h>
 
-#include "dns.h"
+#if HAVE_LIBDJBDNS
+#include <dns.h>
+#else
+#include <resolv.h>
+#endif
 
+#include "htdns.h"
+
+#if ! HAVE_LIBDJBDNS
 extern int h_errno;
 /* extern struct state _res; */
+#endif
 
 union answer_u {
   HEADER hdr;
@@ -183,54 +190,119 @@ void free_rrs(void **resp) {
 
 static void** get_rrs(char *domain, int qtype) {
   unsigned int res, i, cnt, len, offset, x, y, rdlength;
-  answer_t answer;
+  answer_t *answer;
   unsigned int class, type, ttl;
   char *name;
   void **rdata, **rdata2;
+
+#if HAVE_LIBDJBDNS
+  struct dns_transmit dt = {0};
+#endif
   
 
   syslog(LOG_DEBUG, "get_rrs: looking up domain %s, qtype %d", domain, qtype);
-  res = res_search(domain, C_IN, qtype, (u_char*) &answer, sizeof(answer_t));
-  if (-1 == res) {
-    syslog(LOG_ERR, "get_rrs: error in res_search: h_errno=%d, errno=%d, (%s)", 
-	   h_errno, errno, strerror(errno));
-    return NULL;
-  }
 
+#if HAVE_LIBDJBDNS
+  {
+    char s[64];
+    int flagrecursive = 0;
+    char *q = NULL;
+    char t[2];
+    char localip[4] = "\0\0\0\0";
+    iopause_fd x[1];
+    struct taia deadline;
+    struct taia stamp;
+    
+    t[0] = '\0';
+    t[1] = type;
+
+    if (dns_resolvconfip(s) == -1) {
+      syslog(LOG_ERR, "failure in dns_resolvconfip: %d, %s\n",
+	     errno, strerror(errno));
+      return NULL;
+    }
+    
+    dns_domain_fromdot(&q, domain, strlen(domain));
+    
+    if (dns_transmit_start(&dt, s, flagrecursive, q, t, localip) == -1) {
+      syslog(LOG_ERR, "failure in dns_transmit_start: %d, %s\n", 
+	     errno, strerror(errno));
+      return NULL;
+    }
+    
+    for (;;) {
+      int r;
+      taia_now(&stamp);
+      taia_uint(&deadline,120);
+      taia_add(&deadline, &deadline, &stamp);
+      dns_transmit_io(&dt, x, &deadline);
+      
+      iopause(x, 1, &deadline, &stamp);
+      
+      r = dns_transmit_get(&dt, x, &stamp);
+      if (-1 == r) {
+	syslog(LOG_ERR, "failure in dns_transmit_get: %d, %s\n",
+	       errno, strerror(errno));
+	dns_transmit_free(&dt);
+	return NULL;
+      }
+      
+      if (1 == r)
+	break;
+    }
+
+    answer = (answer_t*) dt.packet;
+  }
+#else
+  {
+    answer_t lanswer;
+    res = res_search(domain, C_IN, qtype, (u_char*) &lanswer, sizeof(answer_t));
+    if (-1 == res) {
+      syslog(LOG_ERR, "get_rrs: error in res_search: h_errno=%d, errno=%d, (%s)", 
+	     h_errno, errno, strerror(errno));
+      return NULL;
+    }
+    answer = &lanswer;
+  }
+#endif
 
   cnt = sizeof(HEADER);
 
   /* query section */
-  for (y = 0; y < ntohs(answer.hdr.qdcount); y++) {
-    cnt = get_domain_name(&answer, cnt, NULL);
-    type = get16(answer.buf, cnt);
+  for (y = 0; y < ntohs(answer->hdr.qdcount); y++) {
+    cnt = get_domain_name(answer, cnt, NULL);
+    type = get16(answer->buf, cnt);
     cnt += 2;
-    class = get16(answer.buf, cnt);
+    class = get16(answer->buf, cnt);
     cnt += 2;
   }
 
   /* answer section */
-  rdata = (void**)malloc(sizeof(void*) * (ntohs(answer.hdr.ancount)+1));
-  for (y = 0; y < ntohs(answer.hdr.ancount); y++) {
-    cnt = get_domain_name(&answer, cnt, NULL);
-    type = get16(answer.buf, cnt);
+  rdata = (void**)malloc(sizeof(void*) * (ntohs(answer->hdr.ancount)+1));
+  for (y = 0; y < ntohs(answer->hdr.ancount); y++) {
+    cnt = get_domain_name(answer, cnt, NULL);
+    type = get16(answer->buf, cnt);
     syslog(LOG_DEBUG, "get_rrs: answer type %d", type);
 /*     assert(type==qtype); */
     cnt += 2;
-    class = get16(answer.buf, cnt);
+    class = get16(answer->buf, cnt);
     cnt += 2;
-    ttl = get32(answer.buf, cnt);
+    ttl = get32(answer->buf, cnt);
     cnt += 4;
-    rdlength = get16(answer.buf, cnt);
+    rdlength = get16(answer->buf, cnt);
     cnt += 2;
     rdata2 = rdata+y;
-    get_rdata(&answer, type, cnt, rdlength, rdata2);
+    get_rdata(answer, type, cnt, rdlength, rdata2);
     cnt += rdlength;
   }
 
   rdata2 = rdata+y;
   *((void**)rdata2) = NULL;
 
+#if HAVE_LIBDJBDNS
+  dns_transmit_free(&dt);
+#endif
+
   return rdata;
 }
 
diff --git a/smmapdfw/libsmmapdfw/dns.h b/smmapdfw/libsmmapdfw/htdns.h
similarity index 100%
rename from smmapdfw/libsmmapdfw/dns.h
rename to smmapdfw/libsmmapdfw/htdns.h
diff --git a/smmapdfw/verify_worker/verify_worker.c b/smmapdfw/verify_worker/verify_worker.c
index 585b9d4..5647797 100644
--- a/smmapdfw/verify_worker/verify_worker.c
+++ b/smmapdfw/verify_worker/verify_worker.c
@@ -43,7 +43,7 @@
 #include "containers_public.h"
 #include "smmapd.h"
 
-#include "dns.h"
+#include "htdns.h"
 #include "queue.h"
 #include "smtp.h"