Thanks both of you, for the help
We got it working and the config looks something like this:
PHP Code:
//Mail
$CONFIG['smtp_server'] = 'sh###.surpasshosting.com'; // the smtp server, the cp will use to send mails
$CONFIG['smtp_port'] = '25'; // the smtp server port
$CONFIG['smtp_mail'] = 'user@domain.com'; // the email of the admin
$CONFIG['smtp_username'] = '<cPanel login>'; // the username of the smtp server
$CONFIG['smtp_password'] = '<cPanel pass>'; // the password of the smtp server