.forEach(v -> modifyDeleteEntry(modifyList, attrPostOfficeBox, v)));
        final String attrInitials = fessConfig.getLdapAttrInitials();
        OptionalUtil.ofNullable(user.getInitials())
                .filter(StringUtil::isNotBlank)
                .ifPresent(s -> modifyReplaceEntry(modifyList, attrInitials, s))
                .orElse(() -> getAttributeValueList(result, attrInitials).stream()