public static String generateMail(String name, String surname) {
        String[] searchList = {"ä", "ö", "ü", "ß"};
        String[] replaceList = {"ae", "oe", "ue", "ss"};
        String mailAddress = StringUtils.defaultIfBlank(StringUtils.lowerCase(name, Locale.GERMAN), "vorname") + "." + StringUtils.defaultIfBlank(StringUtils.lowerCase(surname, Locale.GERMAN), "nachname");
        mailAddress = mailAddress.replace(" ", "-");
        mailAddress = StringUtils.replaceEachRepeatedly(mailAddress, searchList, replaceList);
        return StringUtils.stripAccents(mailAddress) + Constants.DEFAULT_MAIL_DOMAIN;
    }