Allow only specific email providers Osclass Solution

Allow only specific email providers Osclass Solution

I have added some popular email provider that is allow to Register , you can just paste this code into function.php file. (You can also add more email provider according to your requirement) 

function cust_restrict_mail_providers() {

    $authorized_providers = array(
        'gmail.com',
        'hotmail.com',
        'live.com',
        'yahoo.com',
        'outlook.com',
        'yandex.com',
        'bing.com',
        'microsoft.com',
        'mailbox.org',
        'mail.live.com',
        'rediff.com',
        'rediffmail.com'
    );
    $current_provider = preg_replace('/^.*@(.*)$/i', '$1', Params::getParam('s_email'));

    if (!in_array($current_provider, $authorized_providers)) {
        osc_add_flash_error_message( _m('Accounts not allowed'));
        osc_redirect_to(osc_register_account_url());
        exit;
    }
}

osc_add_hook('before_user_register', 'cust_restrict_mail_providers');