Ruby ultra simplistic mail server

I am trying to create a simple ruby mail server ( SMTP server) just or fun. I tried the code in the http://snippets.dzone.com/posts/show/3932

I am not able to sendmail from my machine. I also posted comment there but no reply ;(.

Can any you please开发者_开发技巧 help me by giving a pointer or a simple ruby smtp server that can send mail to my gmail account without using a SMTP servers or MTA.

Your SMTP server still needs to connect to smtp.gmail.com to forward your mail. The protocol for doing so can be found in RFC821 (http://james.apache.org/server/rfclist/smtp/rfc0821.txt)

It looks like the example above just allows you to connect to the SMTP server on localhost and store mails locally.