does codeigniter recognize system proxy settings?

CI doesn't care for proxy settings, but PHP may ... if PHP recognizes them, so will CI.

thanks for replying. What can I do now?
The error code is not explicit.

Code:

A PHP Error was encountered

Severity: Warning

Message: fsockopen():

Filename: libraries/Email.php

Line Number: 1949

Backtrace:

File: C:\wamp\www\CardsManagerApp\application\models\fonction.php
Line: 60
Function: send

File: C:\wamp\www\CardsManagerApp\application\controllers\livraison.php
Line: 1747
Function: envoyerMail

File: C:\wamp\www\CardsManagerApp\index.php
Line: 292
Function: require_once

The problem is the proxy. PHP docs on fsockopen has the answer:
http://php.net/manual/en/function.fsockopen.php#82586

Remember that not all problems are CodeIgniter related. Reading up on PHP Docs can help