I'm using the sample script for SMTP-Server from below: 
# SERVER
use warnings;
use strict;

use Net::SMTP::Server;
use Net::SMTP::Server::Client;
use Data::Dumper;

our $host = $ARGV[0] || "0.0.0.0" ;

our $server = new Net::SMTP::Server($host) || 
  croak("Unable to open SMTP server socket");

print "Waiting for incoming SMTP connections on ".($host eq "0.0.0.0" 
+? "all IP addresses":$host)."\n";
$| = 1;
while(my $conn = $server->accept()) {
  print "Incoming mail ... from " . $conn->peerhost() ;
  my $client = new Net::SMTP::Server::Client($conn) || 
    croak("Unable to process incoming request");
  if (!$client->process) { 
    print "\nfailed to receive complete e-mail message\n"; next; }
  print " received\n";
  print "From: $client->{FROM}\n";
  my $to = $client->{TO};
  my $toList = @{$to} ? join(",",@{$to}) : $to;
  print "To:   $toList\n";
  print "\n" ;
  print $client->{MSG};
}

[download]
Here is the code for my client ssending an email 

# CLIENT
use warnings;
use strict;

    use Net::SMTP

    my $SMTP_HOST  = 'localhost';

    sub send_mail
    {
        my ($from, $to_addr, $msg);

        $from       = shift;
        $to_addr    = shift;
        $msg    = shift;

        #
        # Open a SMTP session
        #
        $smtp = Net::SMTP->new( $SMTP_HOST,
                                'Debug' => 1,       # Change to a 1 to
+ turn on debug messages
                            );

        if(!defined($smtp) || !($smtp))
        {
            print "SMTP ERROR: Unable to open smtp session.\n";

            return 0;
        }

        #
        # Pass the 'from' email address, exit if error
        #
        if (! ($smtp->mail( $from ) ) )
        {
            return 0;
        }

        #
        # Pass the recipient address(es)
        #
        if (! ($smtp->recipient( ( ref($to_addr) ? @$to_addr : $to_add
+r ) ) ) )
        {
            return 0;
        }

        #
        # Send the message
        #
        $smtp->data( $msg );

        $smtp->quit;
    }

    sub main
    {
        send_mail(
                'from@domain.com',
                'to@domain.com',
                'This is a test email.\n'
        );
    }

[download]

I've tried using Net::SMTP module to send an email but it complains everytime I set the SMTP server arg to localhost. Both scripts live on the same box. I basically need the ability to send an email from a PC that doesn't have an SMTP server...Any Ideas?

In reply to Sending Email from SMTP-Server by Anonymous Monk

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