Cannot send emails via Roundcube

Issue :

Problem sending email via roundcube on a server with :
Centos 4 i386
11.24.4-STABLE_35075

Fix :

Try the following :

vi /usr/local/cpanel/base/3rdparty/roundcube/config/main.inc.php

and change
$rcmail_config[‘smtp_user’] = ‘%u’;
to
$rcmail_config[‘smtp_user’] = ”;

This should fix the issue !