10-19-2010
what do you mean by IP Address are hardcoded?
can u be more clear on this?
do u want the script that converts the domain name into IP address?
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LEARN ABOUT DEBIAN
net::server::mail::esmtp::xforward
Net::Server::Mail::ESMTP::XFORWARD(3pm) User Contributed Perl Documentation Net::Server::Mail::ESMTP::XFORWARD(3pm)
NAME
Net::Server::Mail::ESMTP::XFORWARD - A module to add support to the XFORWARD command in Net::Server::Mail::ESMTP
SYNOPSIS
use Net::Server::Mail::ESMTP;
my @local_domains = qw(example.com example.org);
my $server = new IO::Socket::INET Listen => 1, LocalPort => 25;
my $conn;
while($conn = $server->accept)
{
my $esmtp = new Net::Server::Mail::ESMTP socket => $conn;
# activate some extensions
$esmtp->register('Net::Server::Mail::ESMTP::XFORWARD');
# adding some handlers
$esmtp->set_callback(RCPT => &validate_recipient);
$esmtp->process();
$conn->close()
}
sub validate_recipient
{
my($session, $recipient) = @_;
my $domain;
if($recipient =~ /@(.*)>s*$/)
{
$domain = $1;
}
if(not defined $domain)
{
return(0, 513, 'Syntax error.');
}
elsif(not(grep $domain eq $_, @local_domains) && $session->get_forwarded_addr != "10.1.1.1")
{
return(0, 554, "$recipient: Recipient address rejected: Relay access denied");
}
return(1);
}
DESCRIPTION
When using a Net::Server::Mail::ESMTP script inside a MTA and not in front of Internet, values like client IP address are not accessible to
the script and when the script returns mail to an other instance of smtpd daemon, it logs "localhost" as incoming address. To solve this
problem, some administrators use the XFORWARD command. This module gives the ability to read and store XFORWARD informations.
METHODS
These methods return the values set by the upstream MTA without modifying them so they can be set to undef or "[UNVAILABLE]". See Postfix
documentation for more.
o get_forwarded_values : returns a hash reference containing all values forwarded (keys in lower case).
o get_forwarded_name : returns the up-stream hostname. The hostname may be a non-DNS hostname.
o get_forwarded_address : returns the up-stream network address. Address information is not enclosed with []. The address may be a non-IP
address.
o get_forwarded_source : returns LOCAL or REMOTE.
o get_forwarded_helo : returns the hostname that the up-stream host announced itself. It may be a non-DNS hostname.
o get_forwarded_proto : returns the mail protocol for receiving mail from the up-stream host. This may be an SMTP or non-SMTP protocol
name of up to 64 characters.
SEE ALSO
Net::Server::Mail::ESMTP, <http://www.postfix.org/XFORWARD_README.html>
AUTHOR
Xavier Guimard, <x.guimard@free.fr>
COPYRIGHT AND LICENSE
Copyright (C) 2006 by Xavier Guimard
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.6.4 or,
at your option, any later version of Perl 5 you may have available.
POD ERRORS
Hey! The above document had some coding errors, which are explained below:
Around line 167:
You forgot a '=back' before '=head1'
perl v5.10.0 2007-04-09 Net::Server::Mail::ESMTP::XFORWARD(3pm)