diff --git a/postfix/html/postkick.1.html b/postfix/html/postkick.1.html
index 67c56befc..42e579581 100644
--- a/postfix/html/postkick.1.html
+++ b/postfix/html/postkick.1.html
@@ -21,7 +21,7 @@ POSTKICK(1)                                                        POSTKICK(1)
        Options:
 
        <b>-c</b> <i>config</i><b>_</b><i>dir</i>
-              Read the <b>main.cf</b> configuration file  in  the  named
+              Read the <a href="postconf.5.html"><b>main.cf</b></a> configuration file  in  the  named
               directory  instead  of  the  default  configuration
               directory.
 
@@ -55,14 +55,14 @@ POSTKICK(1)                                                        POSTKICK(1)
               Enable verbose logging for debugging purposes.
 
 <b>CONFIGURATION PARAMETERS</b>
-       The  following  <b>main.cf</b> parameters are especially relevant
+       The  following  <a href="postconf.5.html"><b>main.cf</b></a> parameters are especially relevant
        to this program.  The text below provides only a parameter
        summary.  See <a href="postconf.5.html"><b>postconf</b>(5)</a> for more details including exam-
        ples.
 
        <b><a href="postconf.5.html#config_directory">config_directory</a> (see 'postconf -d' output)</b>
-              The default location of  the  Postfix  main.cf  and
-              master.cf configuration files.
+              The default location of  the  Postfix  <a href="postconf.5.html">main.cf</a>  and
+              <a href="master.5.html">master.cf</a> configuration files.
 
        <b><a href="postconf.5.html#application_event_drain_time">application_event_drain_time</a> (100s)</b>
               How  long  the  <a href="postkick.1.html"><b>postkick</b>(1)</a>  command  waits  for  a
diff --git a/postfix/makedefs b/postfix/makedefs
index 31b1c9ead..724bea453 100644
--- a/postfix/makedefs
+++ b/postfix/makedefs
@@ -266,7 +266,7 @@ case "$SYSTEM.$RELEASE" in
 		2.[0-3].*) CCARGS="$CCARGS -DNO_IPV6";;
 		esac
 		;;
-     GNU.0.*)
+     GNU.0*|GNU/kFreeBSD.[56]*)
      		SYSTYPE=GNU0
 		# Postfix no longer needs DB 1.85 compatibility
 		if [ -f /usr/include/db.h ]
diff --git a/postfix/src/global/mail_version.h b/postfix/src/global/mail_version.h
index 6cfd84f5e..20e12eb06 100644
--- a/postfix/src/global/mail_version.h
+++ b/postfix/src/global/mail_version.h
@@ -20,7 +20,7 @@
   * Patches change both the patchlevel and the release date. Snapshots have no
   * patchlevel; they change the release date only.
   */
-#define MAIL_RELEASE_DATE	"20070201"
+#define MAIL_RELEASE_DATE	"20070202"
 #define MAIL_VERSION_NUMBER	"2.4"
 
 #ifdef SNAPSHOT
diff --git a/postfix/src/postkick/postkick.c b/postfix/src/postkick/postkick.c
index 721e9ac8e..8446f4069 100644
--- a/postfix/src/postkick/postkick.c
+++ b/postfix/src/postkick/postkick.c
@@ -174,7 +174,18 @@ int     main(int argc, char **argv)
 	msg_warn("Cannot contact class %s service %s - perhaps the mail system is down",
 		 class, service);
 	exit(1);
-    } else {
+    }
+
+    /*
+     * Problem: With triggers over full duplex (i.e. non-FIFO) channels, we
+     * must avoid closing the channel before the server has received the
+     * request. Otherwise some hostile kernel may throw away the request.
+     * 
+     * Solution: The trigger routine registers a read event handler that runs
+     * when the server closes the channel. The event_drain() routine waits
+     * for the event handler to run, but gives up when it takes too long.
+     */
+    else {
 	event_drain(var_event_drain);
 	exit(0);
     }