init III
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240
Perl OTRS/Kernel/cpan-lib/Sisimai/Bite/Email/V5sendmail.pm
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240
Perl OTRS/Kernel/cpan-lib/Sisimai/Bite/Email/V5sendmail.pm
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package Sisimai::Bite::Email::V5sendmail;
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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 = { 'message' => ['----- Transcript of session follows -----'] };
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my $MarkingsOf = {
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# Error text regular expressions which defined in src/savemail.c
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# savemail.c:485| (void) fflush(stdout);
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# savemail.c:486| p = queuename(e->e_parent, 'x');
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# savemail.c:487| if ((xfile = fopen(p, "r")) == NULL)
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# savemail.c:488| {
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# savemail.c:489| syserr("Cannot open %s", p);
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# savemail.c:490| fprintf(fp, " ----- Transcript of session is unavailable -----\n");
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# savemail.c:491| }
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# savemail.c:492| else
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# savemail.c:493| {
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# savemail.c:494| fprintf(fp, " ----- Transcript of session follows -----\n");
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# savemail.c:495| if (e->e_xfp != NULL)
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# savemail.c:496| (void) fflush(e->e_xfp);
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# savemail.c:497| while (fgets(buf, sizeof buf, xfile) != NULL)
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# savemail.c:498| putline(buf, fp, m);
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# savemail.c:499| (void) fclose(xfile);
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'error' => qr/\A[.]+ while talking to .+[:]\z/,
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'rfc822' => qr{\A[ \t]+-----[ \t](?:
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Unsent[ ]message[ ]follows
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|No[ ]message[ ]was[ ]collected
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)[ \t]-----
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}x,
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};
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sub description { 'Sendmail version 5' }
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sub scan {
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# Detect an error from V5sendmail
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# @param [Hash] mhead Message headers 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 v4.1.2
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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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# 'from' => qr/\AMail Delivery Subsystem/,
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return undef unless $mhead->{'subject'} =~ /\AReturned mail: [A-Z]/;
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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 @responding = (); # (Array) Responses from remote server
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my @commandset = (); # (Array) SMTP command which is sent to remote server
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my $anotherset = {}; # (Ref->Hash) Another error information
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my $errorindex = -1;
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my $v = undef;
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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( rindex($e, $StartingOf->{'message'}->[0]) > -1 ) {
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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( $e =~ $MarkingsOf->{'rfc822'} ) {
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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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# ----- Transcript of session follows -----
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# While talking to smtp.example.com:
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# >>> RCPT To:<kijitora@example.org>
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# <<< 550 <kijitora@example.org>, User Unknown
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# 550 <kijitora@example.org>... User unknown
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# 421 example.org (smtp)... Deferred: Connection timed out during user open with example.org
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$v = $dscontents->[-1];
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if( $e =~ /\A\d{3}[ \t]+[<]([^ ]+[@][^ ]+)[>][.]{3}[ \t]*(.+)\z/ ) {
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# 550 <kijitora@example.org>... User unknown
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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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$v->{'diagnosis'} = $2;
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if( $responding[ $recipients ] ) {
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# Concatenate the response of the server and error message
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$v->{'diagnosis'} .= ': '.$responding[$recipients];
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}
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$recipients++;
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} elsif( $e =~ /\A[>]{3}[ \t]*([A-Z]{4})[ \t]*/ ) {
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# >>> RCPT To:<kijitora@example.org>
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$commandset[ $recipients ] = $1;
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} elsif( $e =~ /\A[<]{3}[ ]+(.+)\z/ ) {
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# <<< Response
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# <<< 501 <shironeko@example.co.jp>... no access from mail server [192.0.2.55] which is an open relay.
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# <<< 550 Requested User Mailbox not found. No such user here.
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$responding[ $recipients ] = $1;
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} else {
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# Detect SMTP session error or connection error
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next if $v->{'sessionerr'};
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if( $e =~ $MarkingsOf->{'error'} ) {
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# ----- Transcript of session follows -----
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# ... while talking to mta.example.org.:
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$v->{'sessionerr'} = 1;
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next;
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}
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# 421 example.org (smtp)... Deferred: Connection timed out during user open with example.org
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$anotherset->{'diagnosis'} = $1 if $e =~ /\A\d{3}[ \t]+.+[.]{3}[ \t]*(.+)\z/;
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}
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} # End of if: rfc822
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}
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return undef unless $readcursor & $Indicators->{'message-rfc822'};
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unless( $recipients ) {
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# Get the recipient address from the original message
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for my $e ( @$rfc822list ) {
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if( $e =~ /^To: (.+)$/ ) {
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# The value of To: header in the original message
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$dscontents->[0]->{'recipient'} = Sisimai::Address->s3s4($1);
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$recipients = 1;
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last;
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}
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}
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}
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return undef unless $recipients;
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for my $e ( @$dscontents ) {
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$errorindex++;
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$e->{'agent'} = __PACKAGE__->smtpagent;
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$e->{'command'} = $commandset[$errorindex] || '';
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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'};
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} else {
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# Set server response as a error message
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$e->{'diagnosis'} ||= $responding[$errorindex];
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}
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$e->{'diagnosis'} = Sisimai::String->sweep($e->{'diagnosis'});
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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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delete $e->{'sessionerr'};
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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::V5sendmail - bounce mail parser class for C<V5 Sendmail>.
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=head1 SYNOPSIS
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use Sisimai::Bite::Email::V5sendmail;
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=head1 DESCRIPTION
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Sisimai::Bite::Email::V5sendmail parses a bounce email which created by
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C<Sendmail version 5> or any email appliances based on C<Sendmail version 5>.
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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::V5sendmail->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::V5sendmail->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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