Problem with sieve_before

[Ger Hooton Scoil Chroí Íosa Blarney]

Hi All,
I cannot get the sieve_before to work. I have dovecot & sieve  
installed on Debian 7 as follows
/etc/dovecot/conf.d/90-sieve.conf :
plugin {
  # The path to the user's main active script. If ManageSieve is used, this the
  # location of the symbolic link controlled by ManageSieve.
  sieve = ~/.dovecot.sieve
  # The default Sieve script when the user has none. This is a path to a global
  # sieve script file, which gets executed ONLY if user's private Sieve script
  # doesn't exist. Be sure to pre-compile this script manually using the sievec
  # command line tool.
  # --> See sieve_before fore executing scripts before the user's personal
  # script.
sieve_default = /var/lib/dovecot/sieve/default.sieve
  # Directory for :personal include scripts for the include extension. This
  # is also where the ManageSieve service stores the user's scripts.
  sieve_dir = ~/sieve/
  # Directory for :global include scripts for the include extension.
  sieve_global_dir = /var/lib/dovecot/sieve/
  # Path to a script file or a directory containing script files that  
need to be
  # executed before the user's script. If the path points to a directory, all
  # the Sieve scripts contained therein (with the proper .sieve extension) are
  # executed. The order of execution within a directory is determined by the
  # file names, using a normal 8bit per-character comparison. Multiple script
  # file or directory paths can be specified by appending an increasing number.
  sieve_before = /var/lib/dovecot/sieve/before
  #####sieve_before2 = /var/lib/dovecot/sieve/before/default2.sieve
  #sieve_before3 = (etc...)
  # Identical to sieve_before, only the specified scripts are executed  
after the
  # user's script (only when keep is still in effect!). Multiple script file or
  # directory paths can be specified by appending an increasing number.
  #sieve_after =
  #sieve_after2 =
  #sieve_after2 = (etc...)
  # Which Sieve language extensions are available to users. By default, all
  # supported extensions are available, except for deprecated extensions or
  # those that are still under development. Some system administrators may want
  # to disable certain Sieve extensions or enable those that are not available
  # by default. This setting can use '+' and '-' to specify  
differences relative
  # to the default. For example `sieve_extensions = +imapflags' will enable the
  # deprecated imapflags extension in addition to all extensions were already
  # enabled by default.
  #sieve_extensions = +notify +imapflags
.................................
In /var/lib/dovecot/sieve/before I have :
drwxrwxrwx 3 mail mail 4096 Mar 20 23:47 ..
-rw-rw-rw- 1 root root 195 Mar 21 09:57 default2.svbin
-rwxrwxrwx 1 mail mail 157 Mar 21 11:12 default2.sieve
default2.sieve is as follows:
require ["fileinto"];
if allof (header :matches "subject" "*JUNK*") {
  fileinto "INBOX.Junk";
}
The users personal filters work.
Thanks for your help.

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Ger