Installed and can't use it though perl

[jon]

Hi,

I have now installed qmail and started it up (followed the install
document).  I tried one of the tests -

% echo to: [EMAIL PROTECTED] | /var/qmail/bin/qmail-inject

And I got a blank email though - so it worked.  Now when I tried using qmail
in a perl script -

$mailprog = "/var/qmail/bin/sendmail";
$to ="me\@mydomainname.com";
$subject = "Test";
$msg = "It works";
open (MAIL, "|$mailprog") || die "Can't open $mailprog!\n";
print MAIL "To: $to\n";
print MAIL "From: $to\n";
print MAIL "Subject: $subject\n\n";
print MAIL "$msg";
close (MAIL);

The location to the qmail sendmail program is ok, but no emails are sent.
Any ideas?

Thanks,

Jon