function send_login_email($user_login, $user) {
  $to = 'your_email@dot.com';
  $subject = $user_login . ' user has logged in to your WordPress Dashboard';
  $message = 'Your WordPress was accessed by user' . $user_login . '<br>';
  $message .= 'IP: ' . $_SERVER['REMOTE_ADDR'] . '<br>';
  $message .= 'Country: ' . get_country_from_ip($_SERVER['REMOTE_ADDR']) . '<br>';
  $message .= 'Time: ' . current_time('mysql') . '<br>';
  $headers = array('Content-Type: text/html; charset=UTF-8');
  wp_mail( $to, $subject, $message, $headers );
}
add_action('wp_login', 'send_login_email', 10, 2);


function get_country_from_ip($ip_address) {
  $url = 'https://ipapi.co/' . $ip_address . '/country_name/';
  $response = wp_remote_get($url);
  if (is_wp_error($response)) {
    return '';
  } else {
    $country_name = wp_remote_retrieve_body($response);
    return $country_name;
  }
}