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       greylistd-setup-exim4 - add/remove support for greylistd in Exim 4


       greylistd-setup-exim4 {add|remove|test} [file acl_name] [-option ...]


       This  utility  configures, deconfigures, or tests for greylistd support
       in the given Exim 4 configuration file and Access Control List (ACL).

       If no file or ACL name is supplied, changes are  made  to  the  default
       configuration files and ACLs for your distribution.


       The following commands are available:

       add    Adds greylistd statement(s).

       remove Removes existing greylistd statement(s).

       test   Tests for the presence of greylistd statement(s), without making
              any changes.  A zero exit status indicates that the statement(s)

       The following options are available:

       -quiet Normally,  the  result  of  the operation is printed on standard
              error; this option inhibits output.

              Always exit with a zero status, even on failure. If this  option
              is  given, only the result of successful operations are printed.

              Normally, if any changes were made to the Exim  4  configuration
              files,  greylistd-setup-exim4  invokes  the  Exim 4 init script,
              telling Exim to reload its  configuration  files.   This  option
              inhibits this behavior.

              In  the  statement  that is inserted in the Exim 4 configuration
              file, the remote host address is one of the items that is passed
              on  to  greylistd.   This  option  causes the host address to be
              filtered through a netmask of  the  given  size  first.   Useful
              values are between 16 and 31 for IPv4.

              Used  in  conjunction with the add command to insert a statement
              suitable for use in an ACL used to validate the  SMTP  RCPT  TO:
              command  or  the  message  DATA, respectively.  This is implicit
              when the supplied ACL name contains  either  of  the  substrings
              "rcpt"  or "data" (such as Debian's default "acl_check_rcpt" and
              "acl_check_data"  ACLs).   Otherwise,  this  option  has  to  be
              present for the add command.


       greylistd-setup-exim4 add -netmask=24
              Adds    greylistd   statements   to   any   acl_check_rcpt   and
              acl_check_data ACLs found in any of the following files:

                - /etc/exim4/exim4.conf.template
                - /etc/exim4/conf.d/acl/30_exim4-config_check_rcpt
                - /etc/exim4/conf.d/acl/40_exim4-config_check_data

              In these statements, the data passed to greylistd  includes  the
              host  address filtered through a 24-bit netmask, rather than the
              host's unique IP address.  This allows for pools of several Mail
              Sending  Agents (MSAs) within a given network to be treated as a
              single host.

              If successful, Exim 4 is told to reload its configuration files.
              If a statement already exists, nothing happens - but the program
              exits unsuccessfully (non-zero return code).

       greylistd-setup-exim4 remove -quiet
              Remove greylisting support from the  above  configuration  files
              and  ACLs.   If  greylistd  statements  exist in these files and
              ACLs, they are removed, and Exim 4 will reload its configuration
              files.   The  exit  code  indicates  whether the statements were
              present and are now successfully removed;  but  no  results  are

       greylistd-setup-exim4 add /etc/exim4/exim4.conf.template acl_check_rcpt
              If  no greylistd statements already exists in the acl_check_rcpt
              ACL in the file /etc/exim4/exim4.conf.template, one is inserted.
              In  this  case, the Exim 4 daemon is then NOT told to reload its
              configuration files.


       The statement that is inserted by this utility presumes that the Exim 4
       configuration    comes    from    Debian's    "exim4-config"   package.
       Specifically, it makes use of  the  +relay_from_hosts  host  list,  the
       +local_domains    and   +relay_to_domains   domain   lists,   and   the
       acl_local_deny_exceptions ACL.  A more generalized approach is  on  my,
       ahem, to-do list.


       This  python  script  and  manual  page  is  written  by  Tor Slettnes,
       originally for Debian GNU/Linux.


       Copyright (C) 2004-2005 Tor Slettnes.

       This program is free software; you can redistribute it and/or modify it
       under  the  terms of the GNU General Public License as published by the
       Free Software Foundation; either version 2 of the License, or (at  your
       option) any later version.

       This  program  is  distributed  in the hope that it will be useful, but
       WITHOUT  ANY  WARRANTY;  without   even   the   implied   warranty   of
       General Public License for more details.

       On a Debian GNU/Linux system, the full text of the GPL is available  in
       /usr/share/common-licenses/GPL.  It is also available at:



       greylist(1), greylistd(8), /usr/share/doc/exim4/spec.txt.gz