Do you actually have sendmail installed on your server? I would imagine sendmail could be compiled on NT, but I've never heard of it actually being used there. I could be wrong, but if so it can't be very common. You might want to use SMTP instead. In that case you need to know the SMTP server address, which might or might not be localhost. Other posts show how to use Mail::Mailer with SMTP.

If you are running IIS with the Microsoft SMTP Service locally, and want to use it directly for some reason, something like the following code ought to work (untested since my win32 box is not here) update: switched to newer CDO version:

use Win32::OLE;
my $mailer = new Win32::OLE 'CDO.Message';
$mailer->{From} = 'me@example.com';
$mailer->{To} = 'you@example.com';
$mailer->{Subject} = 'subject here';
$mailer->{BodyText} = 'body here';
$mailer->Send();
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