[jeffa@localhost]$ perl -le'print "yes" if -d "/usr/sbin/sendmail"'
[jeffa@localhost]$ perl -le'print "yes" if -e "/usr/sbin/sendmail"'
yes

##</code><code>##

Change how messages are sent

 ### Do something like this in your 'main':
 if ($I_DONT_HAVE_SENDMAIL) {
   MIME::Lite->send('smtp', "smtp.myisp.net", Timeout=>60);
 }

 ### Now this will do the right thing:
$msg->send;         ### will now use Net::SMTP as shown above