Prereq: "2.4.9"
diff -cr --new-file /var/tmp/postfix-2.4.9/src/global/mail_version.h ./src/global/mail_version.h
*** /var/tmp/postfix-2.4.9/src/global/mail_version.h	Fri Aug 29 13:58:12 2008
--- ./src/global/mail_version.h	Sat Jan  3 20:56:00 2009
***************
*** 20,27 ****
    * Patches change both the patchlevel and the release date. Snapshots have no
    * patchlevel; they change the release date only.
    */
! #define MAIL_RELEASE_DATE	"20080902"
! #define MAIL_VERSION_NUMBER	"2.4.9"
  
  #ifdef SNAPSHOT
  # define MAIL_VERSION_DATE	"-" MAIL_RELEASE_DATE
--- 20,27 ----
    * Patches change both the patchlevel and the release date. Snapshots have no
    * patchlevel; they change the release date only.
    */
! #define MAIL_RELEASE_DATE	"20090103"
! #define MAIL_VERSION_NUMBER	"2.4.10"
  
  #ifdef SNAPSHOT
  # define MAIL_VERSION_DATE	"-" MAIL_RELEASE_DATE
diff -cr --new-file /var/tmp/postfix-2.4.9/HISTORY ./HISTORY
*** /var/tmp/postfix-2.4.9/HISTORY	Sun Aug 31 19:43:26 2008
--- ./HISTORY	Sat Jan  3 20:39:08 2009
***************
*** 13248,13254 ****
  	cleanup/cleanup_final.c, cleanup/cleanup_bounce.c,
  	cleanup/cleanup_api.c.
  
! 20050217
  
  	Streamline the compile time selection of event handling
  	styles, replacing multiple on/off macros by just one
--- 13248,13254 ----
  	cleanup/cleanup_final.c, cleanup/cleanup_bounce.c,
  	cleanup/cleanup_api.c.
  
! 20070217
  
  	Streamline the compile time selection of event handling
  	styles, replacing multiple on/off macros by just one
***************
*** 13657,13659 ****
--- 13657,13665 ----
  	implement a denial of service attack on Postfix. Data
  	confidentiality and integrity are not affected.  File:
  	util/events.c.
+ 
+ 20081203
+ 
+ 	Cleanup: adjust the VSTREAM buffer strategy when reusing
+ 	an SMTP connection with a large TCP MSS value. File:
+ 	smtp/smtp_reuse.c.
diff -cr --new-file /var/tmp/postfix-2.4.9/src/smtp/smtp_reuse.c ./src/smtp/smtp_reuse.c
*** /var/tmp/postfix-2.4.9/src/smtp/smtp_reuse.c	Tue Oct 17 14:49:24 2006
--- ./src/smtp/smtp_reuse.c	Wed Dec  3 19:06:42 2008
***************
*** 214,219 ****
--- 214,224 ----
      }
  
      /*
+      * Avoid poor performance when TCP MSS > VSTREAM_BUFSIZE.
+      */
+     vstream_tweak_sock(session->stream);
+ 
+     /*
       * Update the list of used cached addresses.
       */
      htable_enter(state->cache_used, session->addr, (char *) 0);