It may be too late for this question,but the below link shows a sample about how to send an email by NET::SMTP. http://www.perlmonks.org/?node_id=837884

In Window32,there is no native command email client to be used,POP3 of Windows2003 may be the only tool.If you have installed IIS or Outlook(Outlook express is limited) ,Try WIn32::OLE to send a mail.