CodeIgniter send()) fail - forms

Question

I am learning how to use code igniter and following tutorials. As this is my first time to use MVC, I'm having some trouble implementing the send function. I am doing a tutorial on how send a newsletter sign up form.
For some reason when I hit submit with or without the info, its giving me a 404 page not found with the /send extension. Is there something I'm missing in my config file?
Here is the code
Thanks in advance.

Answer 1

Is not send that is failing but you missed something in your config.
http://codeigniter.com/user_guide/general/urls.html
You should set up your .htaccess according to the guide above.

Answer 2

Did you setup the CodeIgniter rewrite rules in your .htaccess?

Answer 3

Apart from the htaccess possible problem, there are a couple of things wrong in the file you posted:
1) the html <title>HEY<title> before the php class, but I hope that's a typo, right? you don't have html in your controller file, right?
2) You're getting the POST variable wrong; or better, you're confusing and mixing things.
Instead of
$this->input->$_POST('name'); //which is also sintactically wrong
should be:
$this->input->post('name').
The input class already does the retrieving of this superglobal. And unsets them in favour of its own.
3) To use an attachment, you need to call
$this->email->attach($filename);
You just declared a variable and nothing else.
4) What is $this->email->set_newline("\r\n"); ?
I don't see this function in the email class...You need to use a config file for this, or pass the value on library's inizialization:
$config['newline'] = "\r\n";
$this->email->initialize($config);