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send_by_smtp ARGS...
Instance method. Send message via SMTP, using Net::SMTP. The optional ARGS are sent into Net::SMTP::new(): usually, these are

MAILHOST, OPTION=>VALUE, ...

Note that the list of recipients is taken from the ``To'', ``Cc'' and ``Bcc'' fields.

Returns true on success, false or exception on error.

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### 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