src/README.DSN

   1 Exim DSN Patch (4.82)
   2 ---------------------
   3
   4 This patch is free software; you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation; either version 2 of the License, or
   7 (at your option) any later version.
   8
   9 This patch is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this patch; if not, write to the Free Software
  16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA.
  17
  18 Installation & Usage
  19 --------------------
  20 See docs/experimental-spec.txt
  21
  22 Credits
  23 -------
  24
  25 The original work for the patch was done by Philip Hazel in Exim 3
  26
  27 The extract was taken and re-applied to Exim 4 by the following :-
  28 Phil Bingham   (phil.bingham@cwipapps.net)
  29 Steve Falla    (steve.falla@cwipapps.net)
  30 Ray Edah       (ray.edah@cwipapps.net)
  31 Andrew Johnson (andrew.johnson@cwippaps.net)
  32 Adrian Hungate (adrian.hungate@cwipapps.net)
  33
  34 Now Primarily maintained by :-
  35 Andrew Johnson (andrew.johnson@cwippaps.net)
  36
  37 Updated for 4.82, improved and submitted to
  38 http://bugs.exim.org/show_bug.cgi?id=118
  39 by :-
  40 Wolfgang Breyha (wbreyha@gmx.net)
  41
  42 Contributions
  43 -------------
  44 Andrey J. Melnikoff (TEMHOTA) (temnota@kmv.ru)
  45
  46
  47 ChangeLog
  48 ---------
  49 14-Apr-2006 : Changed subject to "Delivery Status Notification"
  50
  51 17-May-2006 : debug_printf in spool-in.c were not wrapped with #ifndef COMPILE_UTILITY
  52               thanks to Andrey J. Melnikoff for this information
  53
  54 12-Sep-2006 : Now supports Exim 4.63
  55
  56 12-Sep-2006 : src/EDITME did not include the #define SUPPORT_DSN as stated
  57               in the documentation, this has now been corrected
  58               thanks to Robert Kehl for this information
  59
  60 28-Jul-2008 : New version for exim 4.69 released.
  61
  62 02-Jul-2010 : New version for exim 4.72 released.
  63
  64 25-Apr-2014 : Version 1.4
  65               *) fix ENVID and ORCPT addition in SMTP transport
  66                 *) p was not moved to the end of the string. new content
  67                    added afterwards overwrites ENVID and/or ORCPT
  68               *) change spool file format to be compatible with the
  69                  extensible format of exim 4 by prepending new values and
  70                  setting the extended bitmask accordingly
  71                 *) use SUPPORT_DSN_LEGACY=yes in Makefile to be able to read
  72                    the legacy format of older patches until all messages are out of queue.
  73               *) change "dsn" boolean toggle to "dsn_advertise_hosts" to
  74                  be able to select who actually can use the extension
  75               *) Add all RFC 3461 MUST fields to delivery-status section
  76               *) convert xtext in ENVID
  77               *) add all successful rcpts to ONE message instead of sending several messages
  78
  79 26-Apr-2014 : Version 1.5
  80               fixes:
  81                 *) fixed wrong order for ENVID
  82                 *) fixed wrong Final-Recipient value
  83                 *) af_ignore_failure is ignored for success reports
  84                 *) fixed DSN_LEGACY switch
  85               improvements:
  86                 *) added MIME "failure" reports
  87                   *) bounce_return_message is ignored (required by RFC)
  88                   *) in case RET= is defined we honor these values
  89                      otherwise bounce_return_body is honored.
  90                   *) bounce_return_size_limit is always honored.
  91                   *) message body intro and final text is ignored
  92                   *) do not send report if DSN flags say NO
  93                 *) added MIME "delay" reports
  94                   *) do not send report if DSN flags say NO
  95                 *) changed from SUPPORT_DSN to EXPERIMENTAL_DSN
  96                 *) updated documentation
  97
  98 01-May-2014 : Version 1.6
  99               fixes:
 100                 *) code cleanup
 101                 *) use text/rfc822-headers were applicable
 102                 *) fix NOTIFY=FAILURE
 103
 104               improvements:
 105                 *) do not truncated MIME messages
 106                   *) if bounce_return_size_limit is smaller then the actual message
 107                      only the header is returned
 108                 *) if bounce_return_body or bounce_return_size_limit prevents Exim
 109                    from returning the requested (RET=FULL) body this fact is added
 110                    as X-Exim-DSN-Information Header
 111                   *) this also means that all of the last three parts of the "failure"
 112                      template are not used anymore
 113
 114                 *) dsn_process switch removed
 115                   *) every router "processes" DSN by default
 116                   *) there is no possibility to "gag" DSN anymore since this violates RFC
 117                 *) dsn_lasthop switch added for routers
 118                   *) if dsn_lasthop is set by a router it is handled as relaying to a
 119                      non DSN aware relay. success mails are sent if Exim successfully
 120                      delivers the message.
 121                 *) redirect routers always "act" as if dsn_lasthop is set
 122
 123                 *) address_item.dsn_aware changed from uschar to int for easier handling.
 124
 125 02-May-2014 : fixes:
 126                 *) Reporting-MTA: use smtp_active_hostname instead of qualify_domain from
 127                    original patch.
 128
 129 20-May-2014 : fixes:
 130                 *) removed support for EXPERIMENTAL_DSN_LEGACY for codebase inclusion
 131                 *) fixed build of exim_monitor tree
 132                 *) fixed late declaration of dsn_all_lasthop
 133
 134 -----------------
 135
 136 Support for this patch up to 1.3 (limited though it is) will only be provided through the SourceForge
 137 project page (http://sourceforge.net/projects/eximdsn/)
 138
 139 From 1.4 onward feel free to ask on the exim-users mailinglist or add comments to
 140 http://bugs.exim.org/show_bug.cgi?id=118
 141