过滤email这一招实在是太狠了zz

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cathayan

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Jan 5, 2007, 1:01:48 AM1/5/07
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发信人: SlutteryWolf (一生懸命|情色·猥琐·变态·双子狼), 信区: Google
标  题: Re: 过滤email这一招实在是太狠了
发信站: 水木社区 (Fri Jan  5 13:34:23 2007), 站内

re!!!
以下是转贴:

     证实收到'aaazzzaaazzzaaazzzaaazzzaaazzz'的真实原因

(注:域名和IP信息有修改)
sal...@test.com(在大陆)发给constr...@recipient.com(在香港,我们分公司),
在发件人服务器查到如下日志:


QUOTE:
Oct 12 10:43:37 localhost postfix/smtpd[30005]: E50DD4187A5:
client=unknown[ 125.0.0.1], sasl_method=LOGIN, sasl_username=sal...@test.com
Oct 12 10:43:43 localhost postfix/cleanup[28691]: E50DD4187A5:
message-id=< 2006101202433...@slave.mail51.cn4e.com>
Oct 12 10:43:44 localhost postfix/qmgr[17170]: E50DD4187A5:
from=<sal...@test.com>, size=36652, nrcpt=2 (queue active)
Oct 12 10:48:53 localhost postfix/smtp[1140]: E50DD4187A5:
to=<constr...@recipient.com>, relay=202.67.0.1[202.67.0.1], delay=316,
status=deferred (conversation with 202.67.0.1[202.67.0.1] timed out while
sending MAIL FROM)
Oct 12 11:43:20 localhost postfix/qmgr[17170]: E50DD4187A5:
from=< sal...@test.com>, size=36652, nrcpt=2 (queue active)
Oct 12 11:43:30 localhost postfix/smtp[28474]: E50DD4187A5:
to=<constr...@recipient.com>, relay=202.67.0.1 [202.67.0.1], delay=3593,
status=deferred (lost connection with 202.67.0.1[202.67.0.1] while sending
message body)
Oct 12 13:43:20 localhost postfix/qmgr[17170]: E50DD4187A5:
from=<sal...@test.com>, size=36652, nrcpt=2 (queue active)
Oct 12 13:43:22 localhost postfix/smtp[5424]: E50DD4187A5:
to=< constr...@recipient.com>, relay=202.67.0.1[202.67.0.1], delay=10785,
status=bounced (host 202.67.0.1[202.67.0.1] said: 500 error (in reply to MAIL
FROM command))
Oct 12 13:45:22 localhost postfix/qmgr[17170]: E50DD4187A5: removed
发件人sal...@test.com收到退信:


QUOTE:
<constr...@recipient.com>: host 202.67.0.1[202.67.0.1]
   said: 500 error (in reply to MAIL FROM command)
在香港的分公司查到如下日志:


QUOTE:
Oct 12 10:44:45 hk postfix/smtpd[21468]: 3BCDC2B000F: client=unknown[ 218.85.0.1]
Oct 12 10:44:45 hk postfix/cleanup[22131]: 3BCDC2B000F:
message-id=<2006101202014...@hk.com>
Oct 12 10:44:45 hk postfix/qmgr[25450]: 3BCDC2B000F: from=< sal...@test.com>,
size=475, nrcpt=2 (queue active)
Oct 12 10:44:53 hk postfix/smtp[22352]: 3BCDC2B000F:
to=<constr...@recipient.com >, relay=maildrop, delay=8, status=sent
(recipient.com)
Oct 12 10:44:53 hk postfix/qmgr[25450]: 3BCDC2B000F: removed
说明这封信已经成功发过去了,但是为什么发件人会收到退信呢?退信是从那来的呢?对比
一下这两条日志:


QUOTE:
Oct 12 10:43:44 localhost postfix/qmgr[17170]: E50DD4187A5:
from=<sal...@test.com>, size=36652, nrcpt=2 (queue active)  (在发件人服务器上的
日志)
Oct 12 10:44:45 hk postfix/qmgr[25450]: 3BCDC2B000F: from=< sal...@test.com>,
size=475, nrcpt=2 (queue active)  (香港收件服务器上的日志)
发件人发送的时候size=36652,而到了香港却被变成了size=475??再看一下
constr...@recipient.com收到的这封信的内容,如下,竟然是
aaazzzaaazzzaaazzzaaazzzaaazzz:

Return-Path: <sal...@test.com>
Delivered-To: constr...@recipient.com
Received: by mail.hk.com (202.67.0.1) (Postfix, from userid 12346)
       id 3BCDC2B000F; Thu, 12 Oct 2006 10:44:53 +0800 (CST)
X-filter: Passed
Received: from unkoown (218.85.0.1 )
       by mail.test.com (Postfix) with ESMTP id E50DD4187A5
       for <constr...@recipient.com>; Thu, 12 Oct 2006 10:43:56 +0800 (CST)
Message-Id: <2006101202014...@hk.com>
Date: Thu, 12 Oct 2006 10:44:45 +0800 (HKT)
From: sal...@test.com
To: undisclosed-recipients:;

aaazzzaaazzzaaazzzaaazzzaaazzz

看到这里相信大家也都明白了,在发件人发给香港的时候,被某一"东东"终止了,返回给
发件人500 error,同时其把内容更改后发给了收件人,于是就出现发件人收到500 error
,而收件人收到aaazzzaaazzzaaazzzaaazzzaaazzz的奇怪事情。这个"东东"就是GFW了(
中国网络防火墙),也证实了前面贴子大家讨论得出的结论都是正确的。

【 在 tooolder (一颗红心儿献给党) 的大作中提到: 】
: 过滤的网站还可以用加密代理上
: 想从国内BBS往gmail转信,有些就是过不去,
: 什么办法都没有
: ...................

--
[色狼奥义]
一:万花丛中过,片叶不沾身。
二:壁立千仞,无欲则刚。
三:男人分两种,一种色得很彪悍,一种色得很含蓄。


※ 来源:·水木社区 newsmth.net·[FROM: 202.106.180.*]

--
cath...@gmail.com
http://blog.cathayan.org
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