class ValidationService implements Reloadable {

    public boolean validateEmail(String email) {
        if (Utils.isEmailEmpty(email) || !StringUtils.isInsideString('@', email)) {
            return false;
        }
        final String emailDomain = email.split("@")[1];
        return validateWhitelistAndBlacklist(
            emailDomain, EmailSettings.DOMAIN_WHITELIST, EmailSettings.DOMAIN_BLACKLIST);
    }

      ValidationService();

}