Method segment

[eluser]Unknown[/eluser]
Hi,

I've a simple method in a controller called "show":

Code:

function show(){

      $mail = $this->uri->segment(4);
      echo $mail;

   }

The thing is that when I go to ...website.com/controller/show/mail/[email protected]

It returns : example@domain_com

when I wait for : example@domain.com

What's the problem ? Thank you very much, see you.