How to send emails through Ruby on rails in linux

I want to include a new module to my project where i can send some mails to my client.I don know how to include this emailing module . i searched in net but most of them have told to edit some SMTP.Where can i find this in linux.I am really confused about thi开发者_如何学编程s.Plz guide me out.I need it urgently.

You need to setup a mail server like Exim4 on your server. Rails should be able to connect to it without any configuration.

The Rails Guides site has a great tutorial on how to send mail from your application.