String user = params.iterator().next();
String username = StringUtils.substring(user, 0, StringUtils.indexOf(user, "@"));
String ftnAddress = Converter.convertEmailToFtn(user);
Notifier.INSTANSE.notify(new AuthUserEvent(new Auth(user, username, ftnAddress)));
Collection<String> response = Lists.newLinkedList();
response.add(NntpResponse.AuthInfo.PASSWORD_REQUIRED);
return response;
}