Forum: Ruby Plz check and tell me the error in this code

require 'net/smtp'

message = <<MESSAGE_END
From: Private Person <me@fromdomain.com>
To: A Test User <chandan.k@cisinlabs.com>
MIME-Version: 1.0
Content-type: text/html
Subject: SMTP e-mail test

This is an e-mail message to be sent in HTML format

<b>This is HTML message.</b>
<h1>This is headline.</h1>
MESSAGE_END

Net::SMTP.start('localhost') do |smtp|
  smtp.send_message message, 'me@fromdomain.com',
                             'chandan.k@cisinlabs.com'
end

Please give the error message you receive.
I think the most likely reason for a failure would be that you don't 
have an SMTP server...