--- a/src.lock_maildirsize	Thu Feb 24 17:21:41 2011 +0100
+++ b/src.lock_maildirsize	Thu Feb 24 20:31:10 2011 +0100
@@ -1,9 +1,9 @@
 # HG changeset patch
-# Parent 52fd74447005c5bef643b4dbe767791d334312ad
+# Parent d242bf664878ef31577058ed193d7c04eb27f6d0
 
-diff -r 52fd74447005 OS/Makefile-Linux
---- a/OS/Makefile-Linux	Thu Feb 24 17:19:04 2011 +0100
-+++ b/OS/Makefile-Linux	Thu Feb 24 17:20:54 2011 +0100
+diff -r d242bf664878 OS/Makefile-Linux
+--- a/OS/Makefile-Linux	Thu Feb 24 20:12:03 2011 +0100
++++ b/OS/Makefile-Linux	Thu Feb 24 20:29:13 2011 +0100
 @@ -16,7 +16,7 @@
  DBMLIB = -ldb
  USE_DB = yes
@@ -13,9 +13,9 @@
  LIBRESOLV = -lresolv
  
  X11=/usr/X11R6
-diff -r 52fd74447005 src/transports/appendfile.c
---- a/src/transports/appendfile.c	Thu Feb 24 17:19:04 2011 +0100
-+++ b/src/transports/appendfile.c	Thu Feb 24 17:20:54 2011 +0100
+diff -r d242bf664878 src/transports/appendfile.c
+--- a/src/transports/appendfile.c	Thu Feb 24 20:12:03 2011 +0100
++++ b/src/transports/appendfile.c	Thu Feb 24 20:29:13 2011 +0100
 @@ -13,6 +13,7 @@
  
  #ifdef SUPPORT_MAILDIR
@@ -83,7 +83,7 @@
  #ifdef SUPPORT_MBX
  /*************************************************
  *         Copy message into MBX mailbox          *
-@@ -2416,18 +2440,19 @@
+@@ -2417,18 +2441,19 @@
        {
        off_t size;
        int filecount;
@@ -135,9 +135,9 @@
  
  #ifdef SUPPORT_MBX
  if (mbx_lockfd >= 0)
-diff -r 52fd74447005 src/transports/appendfile.h
---- a/src/transports/appendfile.h	Thu Feb 24 17:19:04 2011 +0100
-+++ b/src/transports/appendfile.h	Thu Feb 24 17:20:54 2011 +0100
+diff -r d242bf664878 src/transports/appendfile.h
+--- a/src/transports/appendfile.h	Thu Feb 24 20:12:03 2011 +0100
++++ b/src/transports/appendfile.h	Thu Feb 24 20:29:13 2011 +0100
 @@ -95,5 +95,8 @@
  /* Function that is shared with tf_maildir.c */
  
@@ -147,9 +147,9 @@
 +
  
  /* End of transports/appendfile.h */
-diff -r 52fd74447005 src/transports/tf_maildir.c
---- a/src/transports/tf_maildir.c	Thu Feb 24 17:19:04 2011 +0100
-+++ b/src/transports/tf_maildir.c	Thu Feb 24 17:20:54 2011 +0100
+diff -r d242bf664878 src/transports/tf_maildir.c
+--- a/src/transports/tf_maildir.c	Thu Feb 24 20:12:03 2011 +0100
++++ b/src/transports/tf_maildir.c	Thu Feb 24 20:29:13 2011 +0100
 @@ -367,13 +367,16 @@
  
  Returns:           >=0  a file descriptor for an open maildirsize file
@@ -168,7 +168,7 @@
  {
  int count, fd;
  off_t cached_quota = 0;
-@@ -381,25 +384,48 @@
+@@ -381,19 +384,41 @@
  int filecount = 0;
  int linecount = 0;
  off_t size = 0;
@@ -211,19 +211,18 @@
  DEBUG(D_transport) debug_printf("looking for maildirsize in %s\n", path);
  fd = Uopen(filename, O_RDWR|O_APPEND, ob->mode ? ob->mode : 0600);
 -if (fd < 0)
--  {
-+if (fd < 0) {
++if (fd < 0) 
+   {
    if (errno != ENOENT) return -1;
    DEBUG(D_transport)
-     debug_printf("%s does not exist: recalculating\n", filename);
+@@ -401,6 +426,7 @@
    goto RECALCULATE;
--  }
-+}
-+(void)lseek(fd, 0, SEEK_SET);
+   }
+ 
 +
- 
  /* The file has been successfully opened. Check that the cached quota value is
  still correct, and that the size of the file is still small enough. If so,
+ compute the maildir size from the file. */
 @@ -520,16 +546,12 @@
        }
      }
@@ -258,14 +257,11 @@
    if (fd >= 0) (void)close(fd);
    old_latest = 0;
    filecount = 0;
-@@ -586,10 +615,14 @@
-     (void)close(fd);
-     fd = -2;
+@@ -588,8 +617,11 @@
      }
-+    hs12_lock(lockfd, F_UNLCK, "done recalc");
    }
  
-+   hs12_lock(lockfd, F_UNLCK, "done check");
++  hs12_lock(lockfd, F_UNLCK, "done check");
 +	
 +
 +
@@ -274,9 +270,9 @@
  DEBUG(D_transport) debug_printf("returning maildir size=" OFF_T_FMT
    " filecount=%d\n", size, filecount);
  *returned_size = size;
-diff -r 52fd74447005 src/transports/tf_maildir.h
---- a/src/transports/tf_maildir.h	Thu Feb 24 17:19:04 2011 +0100
-+++ b/src/transports/tf_maildir.h	Thu Feb 24 17:20:54 2011 +0100
+diff -r d242bf664878 src/transports/tf_maildir.h
+--- a/src/transports/tf_maildir.h	Thu Feb 24 20:12:03 2011 +0100
++++ b/src/transports/tf_maildir.h	Thu Feb 24 20:29:13 2011 +0100
 @@ -16,7 +16,7 @@
                  uschar *);
  extern int    maildir_ensure_sizefile(uschar *,