+++ /dev/null
-Date: Tue, 8 Dec 1998 13:00:00 -0600
-From: mark david mcCreary <mdm@internet-tools.com>
-
-I have gotten the new VERP feature of Exim 2.054 working in test, along
-with some supporting programs to handle bounces that do come back. The
-routines are included below.
-
-The idea is that each message sent out will have a unique envelope sender,
-and all SMTP engines should return bounces to the machine that sent it,
-based on the envelope information.
-
-The envelope sender is unique in that it contains the mailing list that
-sent the message, as will as the email address of the recipient. Any
-message sent back to that address should always be a bounce, and thus there
-is no need to decipher the body of the message for clues as to which email
-address bounced.
-
-The supporting procmail and perl program simply read the email address, and
-compose a standard <550> SMTP error message to send to the mailing list.
-The mailing list (at least Smartlist) will then remove addresses that
-bounce more than x times.
-
-I would guess with some fancy regexp parsing and Exim filters to place a
-<550> joe@aol.com in the body, the Procmail and Perl routines could be
-replaced, and the <550> error message generated from within Exim, and then
-sent to the appropriate mailing list.
-
-Please let me know if you figure out how to do that.
-
-
-Part 1 - Exim configuration (needs Exim 2.054 or better)
-
-######################################################################
-# TRANPORTS CONFIGURATION #
-######################################################################
-
-## This transport is called for all mailed sent to bounce-*
-# The comeback procmail will parse it, and create a bounce message
-# to the correct list
-
-bounce_pipe:
- driver = pipe;
- command = "/usr/bin/procmail -d comeback",
- envelope_to_add,
- user = exim
-
-
-# This transport is used for delivering messages over SMTP connections.
-# One message at a time, so that the address may be placed in the To: line
-# Kludge up a message id, so that receiving hosts do not consolidate on same
-# message id
-
-smtp:
- headers_remove =
-"To:Message-Id:Resent-To:Resent-Date:Resent-From:Resent-Message-Id:Resent-Bcc",\r
-add_headers = "To: $local_part@$domain\n\
- Message-Id:
-<EMDM${length_3:$local_part}${substr_17_2:$tod_log}${substr_14_2:$tod_log}${subs
-tr_11_2:$tod_log}${length_3:$domain}\
- @$primary_hostname>",
- return_path = "${if match {$return_path}{^(.+?)-request@.*\\$}\
- {bounce-$1=$local_part=$domain@$primary_hostname}fail}",
- driver = smtp;
- max_rcpt = 1
-end
-
-
-
-######################################################################
-# DIRECTORS CONFIGURATION #
-######################################################################
-
-
-# any mail prefixed with bounce- is probably a bounce message
-# from the owner-hack delivery method
-
-bounce:
- driver = smartuser,
- prefix = bounce-;
- transport = bounce_pipe
-
-
-
-Part 2 - Procmail Routine - Needs Procmail 3.11pre7
-
-# The mail-list.com front-end for Smartlist Mailing Lists
-#
-# Copyright (c) 1998 Internet Tools, Inc.
-#
-# 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.
-#
-# Comeback Bounce Error Routine
-#
-# This routine is used when bounced message come back from the owner-hack
-# method of delivery. That is, each envelope sender is unique, containing
-# the list name and email address in the envelope.
-#
-# Reads email message bounced back and creates and sends
-# bounce message back to appropriate list
-#
-# Calls Perl program comeback.pl to accomplish the bulk of the work
-
-PATH=.:/home/ftp/discuss/.bin:/bin:/usr/bin:/usr/local/bin:/usr/sbin:$PATH
-SHELL=/bin/sh
-
-VERBOSE=yes
-LOGABSTRACT=all
-LOGFILE=$HOME/procmailog
-COMSAT=no
-test=test # /usr/bin/test
-mkdir=mkdir # /bin/mkdir
-
-DOMAIN=mail-list.com # the common domain for all the lists
-SUBDOMAIN=`hostname` # the fully qualified hostname
-
-$test -d backup || $mkdir backup
-$test -d bounces || $mkdir bounces
-
-# save a copy of all incoming files to an existing directory called backup
-#
-:0 c
-backup
-
-# detect mail loop
-# save in folder for debugging purposes
-# terminate
-
-:0
-* $^(X-(Unsubscribe:|Diagnostic:))
-bounces
-
-# weighted scoring to determine if it's a from a mailer_daemon
-# The E flag executes only if the preceding receipe did not
-#
-
-#:0 h
-#* -100^0 ^FROM_DAEMON
-#* 1^0
-#{ }
-
-#:0 Eh
-#bounces
-
-SENDER = `formail -rtzx To:`
-SUBJECT = `formail -zxSubject:`
-TODAY = `date "+%Y-%m-%d %T"`
-
-
-:0 hwic: log.lock
-| echo -e $TODAY "\t" $SENDER "\t" $SUBJECT >> log-comeback
-
-
-# throw away all messages that are warnings, or notices of receipt
-
-:0 h
-* ^Subject: \
- (Message status - opened| \
- .*warning| \
- .*temporarily unable to deliver| \
- .*Undelivered mail in mailqueue|.*Waiting mail|mail warning)
-/dev/null
-
-
-# filter the email message
-# throw away the body, all information is in the headers
-
-:0 fbi
-| /bin/true
-
-# filter the email message
-# remove bounce- prefix from envelope-to header
-# move into from header
-
-:0 fh
-* ^Envelope-to: bounce-\/.*
-| formail -I"To: $MATCH"
-
-
-# filter the email message
-# set up the headers for the perl program
-
-:0 fh
-| formail -I"Subject: Bounce from comeback" \
- -I"Envelope-to:" \
- -I"From: mailer-daemon@[127.0.0.1]"
-
-#
-# pass email message to perl program
-# which will send out a bounce message to the correct list, from the bouncing
-# email address
-#
-
-:0 w
-| comeback.pl
-
-
-Part 3 - Perl Program - needs Perl 5.004 with Perl Modules for Internet mail
-
-#!/usr/bin/perl -w
-#
-# The mail-list.com front-end for Smartlist Mailing Lists
-#
-# Copyright (c) 1998 Internet Tools, Inc.
-#
-# 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 will generate bounce messages, and send them to the
-# appropriate list-request address.
-#
-# This program is invoked by a Procmail recipe. The body of the email
-# message came back from the owner-hack delivery, and can be ignored.
-#
-# Exim will stick the envelope address in a special header - Envelope-to:
-#
-# This program will parse out the offending list and email address from
-# that Envelope-To address. Then create a bounce message and send it.
-#
-# This program uses the Perl Module Mail::Internet to send each message.
-
-use Mail::Internet;
-
-chop(my $Date = `date "+%Y-%m-%d %T"`);
-
-my $bounce_body = ' 550 '; # 550 is SMTP error code for user unknown
-open(LOG,">>/tmp/comeback.log") || die(" Could not open comeback.log $!");
-
-$ENV{'SMTPHOSTS'} = '[127.0.0.1]';
-
-my $mesg = new Mail::Internet \*STDIN;
-
-# look at mail headers, and grab the data
-
-my $from = $mesg->head->get('From'); chop($from);
-my $to = $mesg->head->get('To'); chop($to);
-my $subject = $mesg->head->get('Subject'); chop($subject);
-
-my @tokens = split(/@/, $to);
-my @parts = split(/=/, $tokens[0], 2);
-my $long_to = $parts[0];
-my $bad_address = $parts[1];
-
-$bad_address =~ s/=/@/; # replace = sign with @ symbol
-
-$to = $long_to . "-request\@[127.0.0.1]";
-
-# make the body of the message a simple bounce message that smartlist can
-handle
-
-my $message_body = $bounce_body . "<" . $bad_address . ">" . "\n";
-
-my $new_mesg = new Mail::Internet(
- [ ],
- 'Body' => [$message_body]
- );
-
-# this is who the mail is directed to via SMTP;
-
-$ENV{MAILADDRESS} = $from;
-
-# these are the addresses placed in the header block of the message.
-
-$new_mesg->head()->add('From', $from);
-$new_mesg->head()->add('To', $to);
-$new_mesg->head()->add('Subject', $subject);
-
-# $new_mesg->print_header(\*LOG);
-# $new_mesg->print_body(\*LOG);
-
-print LOG "$Date\t$to\t$bad_address\n";
-
-my @recips = $new_mesg->smtpsend;
-
-unless (@recips > 0) {
- print LOG "Failed to deliver ($from,$to,$message_body) \n";
- }
-
-
-Please send comments or suggestions for improvements to mdm@internet-tools.com
-
-mark david mcCreary
-Internet Tools, Inc. 1436 West Gray #438
-mdm@internet-tools.com Houston, Texas 77019
-http://www.internet-tools.com 713.627.9600
git://git.exim.org / exim-website.git / blobdiff