Period changed to underscore

[eluser]phazei[/eluser]
I'm having the exact same problem. A '.' in the url is being converted to '_'
The thing is, it was working just fine yesterday. Only thing I did was change the htaccess to remove www.

Hmm, while writing this I was racking my brain and trying with and with out the www's and the htaccess code.

I found it only does it when I don't include 'index.php' in the url.

Code:

//domain.com/index.php/main/email/[email protected]
$this->uri->segment($this->uri->total_segments()); // = [email protected]

//domain.com/main/email/[email protected]
$this->uri->segment($this->uri->total_segments()); // = someone@somewhere_com

Could it be the htaccess redirect doing it, or CI?

Code:

RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond $1 !^(index\.php|images|robots\.txt|css|/favicon.ico)
    RewriteRule ^(.*)$ index.php?/$1 [L]