Osclass: A way to restrict users by their email provider ?

Add this at the very bottom of your theme functions.php (take care not to leave blank lines after this).

You may continue adding mail providers to the array, separated by comma.

<?php
function cust_restrict_mail_providers() {

$authorized_providers = array(
‘fearp.usp.br’,
‘unip.com.br’,
‘unaerp.com.br’,
‘unicamp.com.br’
);
$current_provider = preg_replace(‘/^.*@(.*)$/i’, ‘$1’, Params::getParam(‘s_email’));

if (!in_array($current_provider, $authorized_providers)) {
osc_add_flash_error_message( _m(‘Your current email is not allowed’));
osc_redirect_to(osc_register_account_url());
}
}

osc_add_hook(‘before_user_register’, ‘cust_restrict_mail_providers’);
?>