i am working in intranet, the ip address of the server is 192.168.1.5.

if ($I_DONT_HAVE_SENDMAIL) {
       MIME::Lite->send('SMTP', "192.168.1.5", Timeout=>60);
    }
    else
    {
         MIME::Lite->send('SMTP', "192.168.1.5", Timeout=>60);
   }
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i am using the above coding to send the mail.