paypal ipn 403 http forbiden

[eluser]Ngulo[/eluser]
yep man sorry my problem was on http connections my provider was blocking them now it works really good all cycle and IPN

just one thing i would like to know .... if you can answer....

did you know how to add custom fields name and retrieve them fron IPN token?

now i'm using standard paypall form input names like

$this->paypal_lib->add_field('business', '[email protected]');
$this->paypal_lib->add_field('return', site_url());
$this->paypal_lib->add_field('cancel_return', site_url());
$this->paypal_lib->add_field('notify_url', site_url('paypal/ipn')); // <-- IPN url
$this->paypal_lib->add_field('custom', '1234567890');

i would like to add my custom fields to form somenthing like :

$this->paypal_lib->add_field('asd', 'asd');

is it possible?