init III
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315
Perl OTRS/Kernel/cpan-lib/Sisimai/Bite/Email/Sendmail.pm
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315
Perl OTRS/Kernel/cpan-lib/Sisimai/Bite/Email/Sendmail.pm
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package Sisimai::Bite::Email::Sendmail;
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use parent 'Sisimai::Bite::Email';
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use feature ':5.10';
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use strict;
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use warnings;
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my $Indicators = __PACKAGE__->INDICATORS;
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my $StartingOf = {
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# Error text regular expressions which defined in sendmail/savemail.c
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# savemail.c:1040|if (printheader && !putline(" ----- Transcript of session follows -----\n",
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# savemail.c:1041| mci))
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# savemail.c:1042| goto writeerr;
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'rfc822' => ['Content-Type: message/rfc822', 'Content-Type: text/rfc822-headers'],
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'message' => [' ----- Transcript of session follows -----'],
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'error' => ['... while talking to '],
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};
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sub description { 'V8Sendmail: /usr/sbin/sendmail' }
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sub scan {
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# Parse bounce messages from Sendmail
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# @param [Hash] mhead Message header of a bounce email
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# @options mhead [String] from From header
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# @options mhead [String] date Date header
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# @options mhead [String] subject Subject header
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# @options mhead [Array] received Received headers
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# @options mhead [String] others Other required headers
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# @param [String] mbody Message body of a bounce email
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# @return [Hash, Undef] Bounce data list and message/rfc822 part
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# or Undef if it failed to parse or the
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# arguments are missing
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# @since v4.0.0
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my $class = shift;
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my $mhead = shift // return undef;
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my $mbody = shift // return undef;
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return undef unless $mhead->{'subject'} =~ /(?:see transcript for details\z|\AWarning: )/;
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unless( lc($mhead->{'subject'}) =~ /\A[ \t]*fwd?:/ ) {
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# Fwd: Returned mail: see transcript for details
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# Do not execute this code if the bounce mail is a forwarded message.
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return undef unless index($mhead->{'from'}, 'Mail Delivery Subsystem') > -1;
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}
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my $dscontents = [__PACKAGE__->DELIVERYSTATUS];
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my @hasdivided = split("\n", $$mbody);
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my $rfc822part = ''; # (String) message/rfc822-headers part
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my $rfc822list = []; # (Array) Each line in message/rfc822 part string
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my $blanklines = 0; # (Integer) The number of blank lines
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my $readcursor = 0; # (Integer) Points the current cursor position
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my $recipients = 0; # (Integer) The number of 'Final-Recipient' header
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my $commandtxt = ''; # (String) SMTP Command name begin with the string '>>>'
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my $esmtpreply = ''; # (String) Reply from remote server on SMTP session
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my $sessionerr = 0; # (Integer) Flag, 1 if it is SMTP session error
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my $connvalues = 0; # (Integer) Flag, 1 if all the value of $connheader have been set
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my $connheader = {
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'date' => '', # The value of Arrival-Date header
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'rhost' => '', # The value of Reporting-tTA headed
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};
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my $anotherset = {}; # Another error information
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my $v = undef;
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my $p = '';
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for my $e ( @hasdivided ) {
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# Read each line between the start of the message and the start of rfc822 part.
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unless( $readcursor ) {
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# Beginning of the bounce message or delivery status part
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if( index($e, $StartingOf->{'message'}->[0]) == 0 ) {
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$readcursor |= $Indicators->{'deliverystatus'};
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next;
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}
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}
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unless( $readcursor & $Indicators->{'message-rfc822'} ) {
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# Beginning of the original message part
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if( index($e, $StartingOf->{'rfc822'}->[0]) == 0 ||
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index($e, $StartingOf->{'rfc822'}->[1]) == 0 ) {
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$readcursor |= $Indicators->{'message-rfc822'};
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next;
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}
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}
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if( $readcursor & $Indicators->{'message-rfc822'} ) {
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# After "message/rfc822"
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unless( length $e ) {
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$blanklines++;
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last if $blanklines > 1;
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next;
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}
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push @$rfc822list, $e;
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} else {
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# Before "message/rfc822"
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next unless $readcursor & $Indicators->{'deliverystatus'};
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next unless length $e;
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if( $connvalues == scalar(keys %$connheader) ) {
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# Final-Recipient: RFC822; userunknown@example.jp
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# X-Actual-Recipient: RFC822; kijitora@example.co.jp
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# Action: failed
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# Status: 5.1.1
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# Remote-MTA: DNS; mx.example.jp
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# Diagnostic-Code: SMTP; 550 5.1.1 <userunknown@example.jp>... User Unknown
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# Last-Attempt-Date: Fri, 14 Feb 2014 12:30:08 -0500
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$v = $dscontents->[-1];
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if( $e =~ /\AFinal-Recipient:[ ]*(?:RFC|rfc)822;[ ]*([^ ]+)\z/ ) {
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# Final-Recipient: RFC822; userunknown@example.jp
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if( $v->{'recipient'} ) {
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# There are multiple recipient addresses in the message body.
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push @$dscontents, __PACKAGE__->DELIVERYSTATUS;
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$v = $dscontents->[-1];
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}
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$v->{'recipient'} = $1;
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$recipients++;
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} elsif( $e =~ /\AX-Actual-Recipient:[ ]*(?:RFC|rfc)822;[ ]*([^ ]+)\z/ ) {
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# X-Actual-Recipient: RFC822; kijitora@example.co.jp
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$v->{'alias'} = $1;
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} elsif( $e =~ /\AAction:[ ]*(.+)\z/ ) {
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# Action: failed
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$v->{'action'} = lc $1;
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} elsif( $e =~ /\AStatus:[ ]*(\d[.]\d+[.]\d+)/ ) {
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# Status: 5.1.1
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# Status:5.2.0
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# Status: 5.1.0 (permanent failure)
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$v->{'status'} = $1;
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} elsif( $e =~ /\ARemote-MTA:[ ]*(?:DNS|dns);[ ]*(.+)\z/ ) {
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# Remote-MTA: DNS; mx.example.jp
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$v->{'rhost'} = lc $1;
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$v->{'rhost'} = '' if $v->{'rhost'} =~ /\A\s+\z/; # Remote-MTA: DNS;
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} elsif( $e =~ /\ALast-Attempt-Date:[ ]*(.+)\z/ ) {
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# Last-Attempt-Date: Fri, 14 Feb 2014 12:30:08 -0500
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$v->{'date'} = $1;
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} else {
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if( $e =~ /\ADiagnostic-Code:[ ]*(.+?);[ ]*(.+)\z/ ) {
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# Diagnostic-Code: SMTP; 550 5.1.1 <userunknown@example.jp>... User Unknown
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$v->{'spec'} = uc $1;
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$v->{'diagnosis'} = $2;
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} elsif( index($p, 'Diagnostic-Code:') == 0 && $e =~ /\A[ \t]+(.+)\z/ ) {
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# Continued line of the value of Diagnostic-Code header
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$v->{'diagnosis'} .= ' '.$1;
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$e = 'Diagnostic-Code: '.$e;
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}
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}
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} else {
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# ----- Transcript of session follows -----
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# ... while talking to mta.example.org.:
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# >>> DATA
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# <<< 550 Unknown user recipient@example.jp
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# 554 5.0.0 Service unavailable
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# ...
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# Reporting-MTA: dns; mx.example.jp
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# Received-From-MTA: DNS; x1x2x3x4.dhcp.example.ne.jp
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# Arrival-Date: Wed, 29 Apr 2009 16:03:18 +0900
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if( $e =~ /\A[>]{3}[ ]+([A-Z]{4})[ ]?/ ) {
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# >>> DATA
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$commandtxt = $1;
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} elsif( $e =~ /\A[<]{3}[ ]+(.+)\z/ ) {
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# <<< Response
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$esmtpreply = $1;
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} elsif( $e =~ /\AReporting-MTA:[ ]*(?:DNS|dns);[ ]*(.+)\z/ ) {
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# Reporting-MTA: dns; mx.example.jp
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next if $connheader->{'rhost'};
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$connheader->{'rhost'} = lc $1;
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$connvalues++;
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} elsif( $e =~ /\AReceived-From-MTA:[ ]*(?:DNS|dns);[ ]*(.+)\z/ ) {
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# Received-From-MTA: DNS; x1x2x3x4.dhcp.example.ne.jp
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next if( exists $connheader->{'lhost'} && $connheader->{'lhost'} );
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# The value of "lhost" is optional
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$connheader->{'lhost'} = lc $1;
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$connvalues++;
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} elsif( $e =~ /\AArrival-Date:[ ]*(.+)\z/ ) {
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# Arrival-Date: Wed, 29 Apr 2009 16:03:18 +0900
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next if $connheader->{'date'};
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$connheader->{'date'} = $1;
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$connvalues++;
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} else {
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# Detect SMTP session error or connection error
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next if $sessionerr;
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if( index($e, $StartingOf->{'error'}->[0]) == 0 ) {
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# ----- Transcript of session follows -----
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# ... while talking to mta.example.org.:
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$sessionerr = 1;
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next;
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}
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if( $e =~ /\A[<](.+)[>][.]+ (.+)\z/ ) {
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# <kijitora@example.co.jp>... Deferred: Name server: example.co.jp.: host name lookup failure
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$anotherset->{'recipient'} = $1;
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$anotherset->{'diagnosis'} = $2;
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} else {
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# ----- Transcript of session follows -----
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# Message could not be delivered for too long
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# Message will be deleted from queue
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next if $e =~ /\A[ \t]*[-]+/;
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if( $e =~ /\A[45]\d\d[ \t]([45][.]\d[.]\d)[ \t].+/ ) {
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# 550 5.1.2 <kijitora@example.org>... Message
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#
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# DBI connect('dbname=...')
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# 554 5.3.0 unknown mailer error 255
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$anotherset->{'status'} = $1;
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$anotherset->{'diagnosis'} .= ' '.$e;
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} elsif( index($e, 'Message: ') == 0 || index($e, 'Warning: ') == 0 ) {
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# Message could not be delivered for too long
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# Warning: message still undelivered after 4 hours
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$anotherset->{'diagnosis'} .= ' '.$e;
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}
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}
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}
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}
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} # End of if: rfc822
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} continue {
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# Save the current line for the next loop
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$p = $e;
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}
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return undef unless $recipients;
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for my $e ( @$dscontents ) {
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# Set default values if each value is empty.
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map { $e->{ $_ } ||= $connheader->{ $_ } || '' } keys %$connheader;
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$e->{'agent'} = __PACKAGE__->smtpagent;
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$e->{'command'} ||= $commandtxt || '';
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$e->{'command'} ||= 'EHLO' if $esmtpreply;
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if( exists $anotherset->{'diagnosis'} && $anotherset->{'diagnosis'} ) {
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# Copy alternative error message
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$e->{'diagnosis'} = $anotherset->{'diagnosis'} if $e->{'diagnosis'} =~ /\A[ \t]+\z/;
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$e->{'diagnosis'} ||= $anotherset->{'diagnosis'};
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$e->{'diagnosis'} = $anotherset->{'diagnosis'} if $e->{'diagnosis'} =~ /\A\d+\z/;
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}
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$e->{'diagnosis'} = Sisimai::String->sweep($e->{'diagnosis'});
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if( exists $anotherset->{'status'} && $anotherset->{'status'} ) {
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# Check alternative status code
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if( ! $e->{'status'} || $e->{'status'} !~ /\A[45][.]\d[.]\d\z/ ) {
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# Override alternative status code
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$e->{'status'} = $anotherset->{'status'};
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}
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}
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unless( $e->{'recipient'} =~ /\A[^ ]+[@][^ ]+\z/ ) {
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# @example.jp, no local part
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# Get email address from the value of Diagnostic-Code header
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$e->{'recipient'} = $1 if $e->{'diagnosis'} =~ /[<]([^ ]+[@][^ ]+)[>]/;
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}
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}
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$rfc822part = Sisimai::RFC5322->weedout($rfc822list);
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return { 'ds' => $dscontents, 'rfc822' => $$rfc822part };
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}
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1;
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__END__
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=encoding utf-8
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=head1 NAME
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Sisimai::Bite::Email::Sendmail - bounce mail parser class for v8 Sendmail.
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=head1 SYNOPSIS
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use Sisimai::Bite::Email::Sendmail;
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=head1 DESCRIPTION
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Sisimai::Bite::Email::Sendmail parses a bounce email which created by v8 Sendmail.
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Methods in the module are called from only Sisimai::Message.
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=head1 CLASS METHODS
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=head2 C<B<description()>>
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C<description()> returns description string of this module.
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print Sisimai::Bite::Email::Sendmail->description;
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=head2 C<B<smtpagent()>>
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C<smtpagent()> returns MTA name.
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print Sisimai::Bite::Email::Sendmail->smtpagent;
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=head2 C<B<scan(I<header data>, I<reference to body string>)>>
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C<scan()> method parses a bounced email and return results as a array reference.
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See Sisimai::Message for more details.
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=head1 AUTHOR
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azumakuniyuki
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=head1 COPYRIGHT
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Copyright (C) 2014-2018 azumakuniyuki, All rights reserved.
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=head1 LICENSE
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This software is distributed under The BSD 2-Clause License.
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=cut
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