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姓名:ELM 职业:网管[网吧管理员] 年龄:26 位置:辽宁 沈阳 介绍:一定要把网络管好 QQ:616621 Email:wzk<AT>wenzk<DOT>net
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文章列表 - 邮件系统相关
Greylist的安装[Postfix+FC4]
<div style="font-size: 12px;">病毒+垃圾邮件刚开始的时候,为了不丢掉工作,被老板逼得安装了Amavisd-new + Spamassassin + clamav的邮件网关<br> 基本解决了很多病毒邮件,因为哪个时候病毒邮件最突出。<br> <br> 后来病毒邮件消失了,中文垃圾邮件冒出来了,使用<a href="http://www.ccert.edu.cn/spam/sa/Chinese_rules.htm" target="_blank">中文规则集</a>后解决了很多问题。<br> <br> 再后来,是图片邮件,安装FuzzyOCR后基本搞定。。。<br> <br> 现在呢。。。图片是变化的,邮件内容每次都在变,目前基本靠手工提取共性来……
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发表于:2006-10-24 ┆
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iXhash
<p>iXhash.pm is a plugin for <a href="http://wiki.apache.org/spamassassin/SpamAssassin">SpamAssassin</a> 3.1.0 and up. A version compatible with <a href="http://wiki.apache.org/spamassassin/SpamAssassin">SpamAssassin</a> 3.0 is provided as well. </p> <p>Basically the plugin provides a network-based test, just as razor2, pyzor and DCC do. Working solely on the body of an email, it removes parts of it and computes a hash value from the rest. These values will then be looked up via DNS using th……
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发表于:2006-08-28 ┆
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Postfix 使用SRC RPM编译的一些选项
http://postfix.wl0.org/en/building-rpms/<br><br> If you wish to use postfix with some of the additionally supported modules you will need to rebuild from the source package. You will also need to have installed the specific packages you wish to link against. During the build procedure rpm will tell you if you are missing the required packages, and likewise if you try and install a binary rpm and don't have the required runtime libraries. <p> If you have downloaded the <code clas……
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发表于:2006-03-26 ┆
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perl client for Authlib - 一个courier认证库的客户端
<p>有时候,人懒的话,就啥事也觉得不想干不想做,觉得做起来都麻烦,一直都想做一个通过courier套件中的authlib认证用户信息的插件模块,却因懒惰而拖延。</p> <p>今天,不知道哪里来的动力,翻开cyrus-sasl 2.1.19的source,看了一把,用perl简单的实现了一个courier-authlib的客户端,支持查询和修改密码。</p> <p>这样这个模块应用到extmail中,就成为了目前为止第四个认证模块了。</p> <h4>Authdamond 认证基本原理</h4> <b>注意:</b>这个所谓原理只是我看checkpw.c 粗浅的认识,详细的原理请直接在courier官方网站查找,……
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发表于:2006-03-19 ┆
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Maildrop规则样例(支持解码)
$HOME/.mailfilter<br>==============================================================<br>if ((/^Subject:.*/))<br>{<br> `mime_header_decode Subject "$MATCH" | egrep "测试" >/dev/null 2>&1`<br> if ( $RETURNCODE == 0 )<br> {<br> to "$HOME/Maildir/.Sent/."<br> }<br>}<br>==============================================================<br>其中mime_header_decode程序的代码:<br>===========================================……
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发表于:2006-03-15 ┆
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print from and subject of messages in mailbox
<pre>#!/usr/bin/perl -w<br>'di ';<br>'ds 00 \"';<br>'ig 00 ';<br><br>#<br># from - print from and subject of messages in mailbox<br>#<br># Copyright (C) 1996-2003 Daniel Quinlan<br>#<br># This program is free software; you can redistribute it and/or modify<br># it under the terms of the GNU General Public License as published by<br># the Free Software Foundation; either version 2 of the License, or<br># (at your option) any later version.<br>#<br># This program is distributed in the hope that i……
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发表于:2006-03-13 ┆
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Postfix中需要注意的几个规则(发信者的身份验证)
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unknown_sender_domain, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unknown_recipient_domain, reject_unauth_pipelining, eject_unauth_destination, permit<br><br># for senders local<br>smtpd_sender_login_maps = mysql:/etc/postfix/mysql_virtual_alias_user_maps.cf, mysql:/etc/postfix/mysql_virtual_user_maps.cf<br>smtpd_reject_unlisted_sender = yes<br>smtpd_sender_restrictions = reject_sender_lo……
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发表于:2006-03-12 ┆
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简明的IMAP用法,详见RFC2060
6.1. Client Commands - Any State<br> 6.1.1. CAPABILITY Command<br> <br> Arguments: none<br> <br> Responses: REQUIRED untagged response: CAPABILITY<br> <br> Result: OK - capability completed<br> BAD - command unknown or arguments invalid<br> <br> Example: &……
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发表于:2006-03-12 ┆
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测试SMTP auth方法
以前测试smtp验证成功与否都是用OE或者是Foxmail,也知道可以通过telnet上去测试,由于两条命令有点难记,所以一直没有弄。<br># perl -MMIME::Base64 -e 'print encode_base64("elm\@elm.freetcp.com");' <br>ZWxtQGVsbS5mcmVldGNwLmNvbQ== <br># perl -MMIME::Base64 -e 'print encode_base64("elm");' <br>ZWxt<br><br>然后<br>telnet elm.freetcp.com smtp<br>Escape character is '^]'.<br>220 elm.freetcp.com ESMTP "XXX"<br>ehlo elm.freeetcp.com<br>250-mail……
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发表于:2006-03-12 ┆
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Postfix Integrated Solution OpenLDAP
<h1 class="SECTION">Debian</h1><p>彩色终端的配置</p><table bgcolor="#e0e0e0" border="0" width="100%"><tbody><tr><td><pre class="SCREEN">debian:~# cat .bashrc<br># ~/.bashrc: executed by bash(1) for non-login shells.<br><br>export PS1='\h:\w\$ '<br>umask 022<br><br># You may uncomment the following lines if you want `ls' to be colorized:<br># export LS_OPTIONS='--color=auto'<br># eval `dircolors`<br># alias ls='ls $LS_OPTIONS'<br># alias ll='ls $LS_OPTIONS -l'<br># alias l='ls $LS_OPTIONS -lA'<br……
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发表于:2006-03-11 ┆
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postfix+ldap+sasl2+courier-imap for freebsd完全ports
<table border="0" cellpadding="4" cellspacing="1" width="100%"><tbody><tr><td><font class="bigfont"><b>postfix+ldap+sasl2+courier-imap for freebsd完全ports安装</b></font></td> </tr> <tr> <td><span class="normalfont">2005-09-19 柯贵中 www.chinake.com</span></td> </tr> <tr> <td><span class="normalfont">打印于: <a href="http://sysop.com.cn/">系统管理员社区</a><br> url 地址: <a href="http://……
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发表于:2006-03-11 ┆
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RedHat Enterprise Linux Server 4.2 + OpenLDAP + ..
<span class="tpc_title">RedHat Enterprise Linux Server 4.2 + OpenLDAP + Samba + Postfix + Antivir-Mailgate</span><br> <!----> <br><span class="tpc_content"><br> 作者:Fandy<br>电子邮箱:<a href="mailto:cbbc@163.com">cbbc@163.com</a>、<a href="mailto:cbbc@avl.com.cn">cbbc@avl.com.cn</a><br>QQ号码:332018422<br>建立日期:2006年01月16日,最后修改日期:2006年02月20日<br>版权说明:本文章的内容归作者版权所有,同时也接受大家的转贴,但一定要保存作者信息和出处,多谢!<br><br>因 为软件版权和费用的问题……
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发表于:2006-03-11 ┆
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在Linux平台上安装基于Postfix、Courier-imap、Extmail的邮件系统
很久之前就计划写一个Postfix在Linux平台上面的安装文档,把自己安装Postfix的过程总结一下,但由于工作的关系直到现在才动手。和个人 的习惯有关,在安装过程中我使用了很多源代码,这对一个新手可能有些难度,但是我认为在Linux下面如何从源代码安装软件应当是每个系统管理都必须掌握 的知识。我准备使用CHOST="i686-pc-linux-gnu" CFLAGS="-march=pentium4 -O2 -pipe -fomit-frame-pointer" CXXFLAGS="-march=pentium4 -O2 -pipe -fomit-frame-pointer"作为gcc 3.4.4在i686 CPU上面的优化参数,你可以根据自己的实际情况进行修改。……
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发表于:2006-02-06 ┆
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Postfix发信用户身份检查
<a href="http://www.postfix.org/postconf.5.html#smtpd_sender_restrictions">http://www.postfix.org/postconf.5.html#smtpd_sender_restrictions</a><br /><br /><br /><p><dl><dt><b><a name="smtpd_sender_restrictions">smtpd_sender_restrictions</a> (default: empty)</b></dt><dd> <p> Optional restrictions that the Postfix SMTP server applies in the context of the MAIL FROM command. </p> <p> The default is to permit everything. </p> <p> Specify a list of restrictions, separated by commas an……
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发表于:2005-12-21 ┆
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Postfix Address Verification Howto
<a href="http://www.postfix.org/ADDRESS_VERIFICATION_README.html">http://www.postfix.org/ADDRESS_VERIFICATION_README.html</a><br /><br />习惯使用Postfix了<br /><p><h2>WARNING </h2> <p> The sender/recipient address verification feature described in this document is suitable only for low-traffic sites. It performs poorly under high load and may cause your site to be blacklisted by some providers. See the "<a href="http://www.postfix.org/ADDRESS_VERIFICATION_README.html#limitations">Limi……
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发表于:2005-12-21 ┆
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把邮件存储移动到JFS上的问题(Maildir)
把邮件的存储移动到JFS上无法获得新邮件的问题,下面是一些人发的帖子及其回复
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发表于:2005-12-17 ┆
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使用Postfix系统做外发SMTP服务器遇到的问题
目的: 搭建单独的SMTP外发服务器,从正常的邮件服务器中独立出来
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发表于:2005-12-03 ┆
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Mail Servers [学习编译方法]
Liferay Portal Enterprise can integrate with Washington IMAP+Sendmail, Cyrus IMAP+Postfix, and Dovecot+Postfix. Support for integration with Microsoft Exchange and other IMAP servers are planned and will be implemented in the near future.<br /><p>The portal synchronizes with the mail server's user authentication by adding a mail server account when a portal account is added, deleting a mail server account when a portal account is deleted, and updating a mail server account when a portal ac……
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发表于:2005-12-02 ┆
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POSTFIX, Spamassassin, ClamAV, Mailscanner
<a href="http://rpm.pbone.net/index.php3/stat/4/idpl/2413464/com/pscm-1.0.0.1-1.fc4.i386.rpm.html">http://rpm.pbone.net/index.php3/stat/4/idpl/2413464/com/pscm-1.0.0.1-1.fc4.i386.rpm.html</a><br /><br />pscm rpm build for : <b>Fedora 4</b>. For other distributions click <a href="http://rpm.pbone.net/index.php3?stat=3&search=pscm&srodzaj=3">here</a>.<br /><br /> <table width="700" cellspacing="0" cellpadding="0" border="0" class="textblack"><tbody><tr><td width="50%">Name : <strong>pscm</st……
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发表于:2005-12-02 ┆
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ClamSMTP: An SMTP Virus Filter
<a href="http://memberwebs.com/nielsen/software/clamsmtp/">http://memberwebs.com/nielsen/software/clamsmtp/</a><br /><br /> ClamSMTP is an SMTP filter that allows you to check for viruses using the <a href="http://www.clamav.net/">ClamAV anti-virus</a> software. It accepts SMTP connections and forwards the SMTP commands and responses to another SMTP server. The 'DATA' email body is intercepted and scanned before forwarding. <p>ClamSMTP aims to be lightweight, reliable, and simple rathe……
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发表于:2005-11-17 ┆
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ProxSMTP: An SMTP Filter
<p><a href="http://memberwebs.com/nielsen/software/proxsmtp/">http://memberwebs.com/nielsen/software/proxsmtp/</a></p><p><br />ProxSMTP is a flexible tool that allows you to reject, change or log email based on arbitrary critera. It accepts SMTP connections and forwards the SMTP commands and responses to another SMTP server. The 'DATA' email body is intercepted and filtered before forwarding.</p> <p>You need to be able to write the filtering scripts that integrate it with your particul……
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发表于:2005-11-17 ┆
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为什么发附件到gmail返回552 5.7.0 Illegal Attachment错误信息?
作为预防可能存在的病毒的一种安全手段,G
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发表于:2005-10-19 ┆
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Postfix+Openwebmail+虛擬帳號 On Mandrake 9.2
在這裡我們要介紹如何使用Vm-pop3d和openwebmail 來做虛擬帳號管理。<br /><p><br /> 假設情型是大家都裝好了postfix和Openwebmail.<br /> 快速安裝postfix<br /> <a target="_blank" href="http://www.php5.idv.tw/modules.php?mod=books&act=show&shid=2507">http://www.php5.idv.tw/modules.php?mod=books&act=show&shid=2507</a><br /> <br /> 把openwebmail也裝上吧,<br /> 沒裝的看這裡。<br /> <a target="_blank" href="http://www.php5.idv.tw/modules.php?mod=books&act=show&shid=2506">http://www.ph……
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发表于:2005-08-22 ┆
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Postfix+Openwebmail+Vm-pop3d on mdk 9.2
<p>Postfix+Openwebmail+Vm-pop3d on mdk 9.2</p> <p> 2005.02.25 為了方便管理和安全性,<br /> Openwebmail 改用 auth_vdomain.pl 認證後,就可以建立virtual user囉~ <img class="wp-smiley" alt=":razz:" src="http://mail.sjps.phc.edu.tw/%7Eenix/blog/wp-images/smilies/icon_razz.gif" /><br /> </p> <p>這份實做的筆記是在我已經安裝好postfix和openwebmail之後做的,有一些前置的設定<br /> 就不在此重述或另外說明嚕~</p><p><p><strong>STEP 1.</strong> 先改用vm-pop3d<br /> vm-pop3d可以在contrib裡找到:<br /> ……
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发表于:2005-08-22 ┆
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Re: SMTP AUTH+ldap
<font size="2" face="arial"><span class="quotelev3">> >>i have a ldap. and i wish to do saslauthd on my ldap. basically, </span><br /> <span class="quotelev3">> >>this is my configuration. </span><br /> <span class="quotelev3">> >> </span><br /> <span class="quotelev3">> >>file: /etc/postfix/main.cf </span><br /> <span class="quotelev3">> >>-------------------------------- </span><br /> <span class="quotelev3">> >>smtpd_sasl_auth_en……
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发表于:2005-08-05 ┆
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终于等到!世界垃圾邮件大王正式退休
出处:中关村在线     更新时间:2005-7-27 <br /> <br /> <br />
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发表于:2005-08-02 ┆
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思科和雅虎联手确立反垃圾邮件签名技术标准
出处:天极网     更新时间:2005-7-27<br /> <br /> <br /> 7月25日,从知名反垃圾邮件厂商
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发表于:2005-08-02 ┆
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新一代“行为识别”智能反垃圾邮件技术问世
<font face="宋体"> 南方网讯 电子邮件系统面临着十分严峻的网络安全问题:既要防止黑客的攻击,又要防范针对邮件系统的病毒邮件蔓延;既要防止垃圾邮件泛滥,又要堤防内部敏感资料的泄漏。这些问题在3、5年前还不是很突出,但是仅仅过了几年,就对传统的电子邮件系统提出一个又一个考验。</font><p><p><font face="宋体"> 北京市863重点支持的敏讯科技,在2004中国互联网反垃圾邮件峰会上专门介绍了新一代“行为识别”智能反 垃圾邮件新技术。目前国内外通常的反垃圾邮件技术,都是基于黑名单、规则库关键字内容过滤的原理工作的……
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发表于:2005-07-31 ┆
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微软调整SenderID反垃圾邮件技术 将成行业标准
TOM科技讯<br /> 美国东部时间10月25日(北京时间10月26日)据海外媒体的最新报道,微软公司周一对外宣布,该公司已对提交给互联网工程任务小组(IETF)的反垃<br /> 圾邮件协议S
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发表于:2005-07-31 ┆
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SPF: Sender Policy Framework
SPF is <a class="txt1" href="http://spf.pobox.com/howworks.html">Sender Policy Framework <br /> </a> <br /> SPF <font color="black">fights return-path address forgery</font> and makes it easier to identify spoofs.<br /> Domain owners identify sending mail servers in DNS. <br /> SMTP receivers verify the envelope sender address against this information, and can distinguish authentic messages from forgeries before any message data is transmitted.<br /><br />http://s……
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发表于:2005-07-29 ┆
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Fighting Spam/Viruses with Amavisd-New, Maia and P
<h1><span lang="en-us">Overview</span></h1> <blockquote> <p><span lang="en-us"><a href="http://www.postfix.org/" target="_top">Postfix</a> is a mail transport agent written by security researcher Wietse Venema. Not surprisingly, Postfix is designed from the ground up to be a highly secure system. It consists of several components, each of which runs with least privilege and none of which trust data from the other without validatin……
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发表于:2005-07-29 ┆
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Sender Policy Framework SPF
<h1><span lang="de-ch">Overview</span></h1> <blockquote> <p><span lang="de-ch">Much of this article can be found on <a href="http://spf.pobox.com/">http://spf.pobox.com</a>.</span> Have you ever gotten spam from yourself? <span lang="de-ch">We</span> have, and <span lang="de-ch">we have</span> been thinking hard about how to stop it! <span lang="de-ch">We</span> didn't send it. It came from a spammer. If we could stop spammers from forging m……
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发表于:2005-07-29 ┆
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Hashcash
Hashcash is a denial-of-service counter measure tool. Its main current use is to help hashcash users avoid losing email due to content based and blacklist based anti-spam systems.<p><p>A hashcash stamp constitutes a proof-of-work which takes a parameterizable amount of work to compute for the sender. The recipient can verify received hashcash stamps efficiently.</p> <ul><li>Hashcash <a href="http://hashcash.org/faq/">FAQ</a>. </li><li>Hashcash <a href="http://hashcash.org/dev/">fo……
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发表于:2005-06-13 ┆
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用 hashcash 打击垃圾邮件
<strong>前言</strong><br /><br /> <blockquote>hashcash 是一个基于可广泛应用的 SHA-1 算法的巧妙系统,它使得请求者要进行大量可参数化的工作,而求值程序仍可以“廉价”地进行检验。换句话说,发送者为了向您的收件箱中放入一些内容,不得不 去做一些切实的工作。您当然可以使用 hashcash 来防止垃圾邮件,不过它还有其他方面的应用,其中包括为 Wiki 防止垃圾邮件以及加速分布式并行应用程序的运转。在本文中,您将接触到 David 自己的基于 Python 的 hashcash 实现。</blockquote><p>hashcash.org Web 站点(请参阅……
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发表于:2005-06-13 ┆
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CCERT中文垃圾邮件过滤规则集Chinese_rules.cf
CCERT中文垃圾邮件过滤解决方案
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发表于:2005-06-13 ┆
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在SA中使用中国反垃圾邮件联盟的DNS实时黑名单技术
适合中国国情呀<p>header RCVD_IN_CASA_CBL eval:check_rbl('CBL','cbl.anti-spam.org.cn.')<br />describe RCVD_IN_CASA_CBL Relay in CASA CBL,http://anti-spam.org.cn/services/rbl.php#cbl<br />tflgs RCVD_IN_CASA_CBL net<br />score RCVD_IN_CASA_CBL 2.0<br /><br />header RCVD_IN_CASA_CDL eval:check_rbl('CDL','cdl.anti-spam.org.cn.')<br />describe RCVD_IN_CASA_CDL Relay in CASA CDL,http://anti-spam.org.cn/services/rbl.php#cdl<br />tflags RCVD_IN_CASA_CDL net<br />score RCVD_IN_CASA_CDL 3.0<br /><br />head……
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发表于:2005-06-13 ┆
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SpamAssassin 3.x 配置指南 (中文版)[转载]
总算咬牙翻译完了,95K啊·~早知道不翻译这篇了。
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发表于:2005-06-12 ┆
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Beating Spam and Viruses with amavisd-new
<h1 class="title">Beating Spam and Viruses with amavisd-new and Maia Mailguard</h1> <!-- begin content --> <span class="submitted">By <a title="View user profile." href="http://www.linuxjournal.com/user/801355">Robert LeBlanc</a> on Thu, 2004-11-11 00:00.</span> Think you can't afford best-of-breed spam and virus protection for your business? Here are two good reasons to think again.<p><div lang="en" class="article"> <div lang="e……
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发表于:2005-06-12 ┆
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Maia Mailguard
<span style="font-weight: bold;">只要整天在网上逛,总是有收获的:)<br /><br /></span>The Maia Mailguard Project began its life as a simple Web front end for amavisd-new, designed to let users adjust their content-filter settings and manage their quarantines from a convenient interface. The project proved quite popular with ISPs, Web-mail providers and companies offering off-site content filtering, however, and the needs of these larger-scale clients soon developed Maia Mailguard into something ……
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发表于:2005-06-12 ┆
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Mail Quota
http://www.courier-mta.org/?deliverquota.html<p><br />
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发表于:2005-06-10 ┆
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架构基于FreeBSD和Postfix的IGENUS Webmail邮件系统2.02正式发布
架构基于Free BSD和Postfix的IGENUS Web mail邮件系统<br /> ――――――――――――――――――――――――――――――――――<br /> 主要改进了验证方式和验证程序,验证速度比1.05快1-2倍,更加节约系统资源,使系统配置更简单化。<br /> 发布了igenus for postfix 1.01 bate版本<br /> 修正了配置文件authdaemonrc文件,使系统运行更加的稳定<br /> 修正了很多文字性的错误......<br /> 增加手动设置测试用户<br /> 演示:<br /> <a target="_blank" href="http://mail.toping.net/">http://mail.toping.net</a><br />……
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发表于:2005-06-10 ┆
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导邮件用户脚本
邮件系统从原来的Netscape切换到另一个邮件软件上<br /><br />原口令是没有经过加密的,下面是要用的2个脚本<br /><p>从LDAP获取所有用户的用户信息:<br /> <br /> #!/bin/sh<br /> #name get_user_info.sh<br /> BASEDN="uid=admin, ou=Administrators, ou=TopologyManagement, o=NetscapeRoot"<br /> PASSWD="YOU PASSWORD"<br /> ldapsearch -LLL -x -h MAIL_SERVER_IP -D "$BASEDN" -w "$PASSWD" -b "o=test.com" mail uid mailquota userpassword cn<br /> <br /> 输出结……
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发表于:2005-06-06 ┆
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SpamAssassin使用中需要注意的
这也要怪当初只是草草的看了看Spa
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发表于:2005-06-05 ┆
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哎,搞来搞去,还是被骗了
关于Postfix使用saslauthd验证默认域的问题<br />提出需要默认域,对方工程师说需要改源程序,昏到,纯属忽悠,后悔当初自己搭建邮件系统的时候没有仔细看过所有的配置文档<br /><p><dl><dt><b><a name="smtpd_sasl_local_domain"></a></b></dt><dt><b><a name="smtpd_sasl_local_domain"></a></b></dt><dt><b><a name="smtpd_sasl_local_domain"></a></b></dt><dt>这是postfix 的main.cf文件的配置<br /></dt><dt><b><a name="smtpd_sasl_local_domain"></a></b></dt><dt><b><a name="smtpd_sasl_local_domain">smtpd_sasl_local_domain<……
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发表于:2005-05-23 ┆
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架构基于FreeBSD和Postfix的IGENUS Webmail邮件系统1.05正式发布
转载,来源:http://www.xuki.
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发表于:2005-05-19 ┆
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<