Your posting problem is that you failed to put <code> tags around your </code>.

use strict;
use Net::SMTP;

my $globalMailServer = "127.0.0.1";

{
    sendmail ('JoeCool@somewhere.com',  # put real e-mail address here
              'JoeCoolio',              # put your real name here
              'shipping@somewhere.com', # put dest e-mail address here
              'Shipping Department',    # put dest name here
              'You the man',            # subject
              'This probably wont work, but oh well.');  # message
}

sub sendmail
{
    @_ == 6 or die "Improper number of arguments";

    my ($fromemail, $fromname, $toemail, $toname, $subject, $message) 
+= @_;
    my $smtp = 0;

    $smtp = Net::SMTP->new($globalMailServer) or die "Can't connect to
+ mail server named '$globalMailServer'\n";

    $smtp->mail ($fromemail);
    $smtp->to ($toemail);

    $smtp->data ();
    $smtp->datasend ("To: $toname\n");
    $smtp->datasend ("From: $fromname\n");
    $smtp->datasend ("Subject: $subject\n");
    $smtp->datasend ("\n");
    $smtp->datasend ($message);
    $smtp->dataend ();

    $smtp->quit;
}
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