+++ /dev/null
-Date: Tue, 23 Nov 1999 02:49:32 +0200
-From: Vadim Vygonets <vadik@cs.huji.ac.il>
-
-This is an Exim filter snippet to change locally-generated
-Message-Id: and Resent-Message-Id: headers to world-unique values.
-
-
-# Exim filter
-
-# Copyright (c) 1999
-# Hans Matzen <hans@tm.informatik.uni-frankfurt.de>,
-# Vadim Vygonets <vadik@vygo.net>. All rights reserved.
-
-#################################################################
-# Change locally-generated Message-Id: and Resent-Message-Id:
-# headers to world-unique values.
-
-# Notes:
-# Change every occurence of "home.dom" to your home domain.
-# Change every occurence of "uniqie.remote.dom" to some unique value.
-
-# Unique values, as Vadik explained in his message to exim-users,
-# can be chosen in different ways:
-
-### The ideal way is to choose "hostnames" in existing domains whose
-### admins you know, and you will be sure that no hostname ending
-### with ".nonexistant.friendly.dom" will ever appear on this planet,
-### not even on someone else's message IDs.
-
-### Another ideas include putting after your hostname things like:
-### .972.2.6412694.phone
-### .29.32.columbia.street.jerusalem.96583.israel.addr
-### .1122.3576.3847.1446.visa.01.2002.expiration.date.vadim.vygonets.name.credit.card
-
-# This snippet provides to schemes to do such rewriting. The
-# first scheme is to have mapping from local hostnames to unique
-# "Message-Id domains". The second scheme is to use one unique
-# "Message-Id domain", inserting the original "domain" into the
-# "local-part" of the new Message-Id header.
-
-# Precaution
-headers remove "X-Vygo-Net-Temporary-Message-Id"
-
-# Change Message-Id:
-if "${if def:h_Message-Id: {yes}}" is yes and
- ${lc:${domain:$h_Message-Id:}} is "home.dom" or
- ${lc:${domain:$h_Message-Id:}} ends ".home.dom" then
-# This is if you want to have a file mapping each hostname to a unique
-# Message-Id domain part, or, if it fails, preserves the original domain part:
-# headers add "X-Vygo-Net-Temporary-Message-Id: <${local_part:$h_Message-Id:}@${lookup{${domain:$h_Message-Id:}}lsearch{/var/exim/msgid-hosts}{$value}{${domain:$h_Message-Id:}}}>\n"
-# This rewrites Message-Id as <local_part.domain@unique.domain>:
- headers add "X-Vygo-Net-Temporary-Message-Id: <${local_part:$h_Message-Id:}.${domain:$h_Message-Id:}@unique.remote.dom>\n"
- headers remove "Message-Id"
- headers add "Message-Id: $h_X-Vygo-Net-Temporary-Message-Id:"
- headers remove "X-Vygo-Net-Temporary-Message-Id"
-endif
-
-# Change Resent-Message-Id:
-if "${if def:h_Resent-Message-Id: {yes}}" is yes and
- ${lc:${domain:$h_Resent-Message-Id:}} is "home.dom" or
- ${lc:${domain:$h_Resent-Message-Id:}} ends ".home.dom" then
-# This is if you want to have a file mapping each hostname to a unique
-# Message-Id domain part, or, if it fails, preserves the original domain part:
-# headers add "X-Vygo-Net-Temporary-Message-Id: <${local_part:$h_Resent-Message-Id:}@${lookup{${domain:$h_Resent-Message-Id:}}lsearch{/var/exim/msgid-hosts}{$value}{${domain:$h_Resent-Message-Id:}}}>\n"
-# This rewrites Message-Id as <local_part.domain@unique.domain>:
- headers add "X-Vygo-Net-Temporary-Message-Id: <${local_part:$h_Resent-Message-Id:}.${domain:$h_Resent-Message-Id:}@unique.remote.dom>\n"
- headers remove "Resent-Message-Id"
- headers add "Resent-Message-Id: $h_X-Vygo-Net-Temporary-Message-Id:"
- headers remove "X-Vygo-Net-Temporary-Message-Id"
-endif
-