隐藏postfix的头信息，提高系统安全 postfix, 系统, 隐藏

jacky

隐藏下面引用： 引用: retr 1 //返回第一封信的全部内容 +OK 2217 octets follow. Return-Path: X-Original-To: webmaster@toping.net Delivered-To: webmaster@toping.net Received: from mail (localhost.toping.net [127.0.0.1]) by mail.toping.net (Postfix) with ESMTP id 58DC71D5 for ; Mon, 9 Aug 2004 21:11:20 +0800 (CST) SUBJECT:test Message-Id: <20040809131120.58DC71D5@mail.toping.net> Date: Mon, 9 Aug 2004 21:11:20 +0800 (CST) From: webmaster@toping.net To: undisclosed-recipients:; 中的： 引用: Received: from mail (localhost.toping.net [127.0.0.1]) by mail.toping.net (Postfix) with ESMTP id 58DC71D5 在main.cf中把mail_name (default: Postfix) 改成 mail_name = Mail Server ，可以把： 引用: Received: from mail (localhost.toping.net [127.0.0.1]) by mail.toping.net (Postfix) with ESMTP id 58DC71D5 中的"Postfix" 给换成"Mail Server" ，这样可以隐藏目标信息提高安全，怎么能再减少非必要信息？象这样： 引用: From: 20040218152627.15868.qmail@sina.com