http://www.nuclearelephant.com/projects/dspam/
LICENSE
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
TABLE OF CONTENTS
目录
DSPAM的一般知识
1.0 DSPAM介绍
1.1 安装
1.2 测试
1.3 故障处理
1.4 DSPAM工具
1.5 代理命令行参数
DSPAM的高级功能
2.0 连接libdspam
2.1 配置组群
2.2 外部播种学理论
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其它功能
3.0 故障、端口等问题
3.1 已知的故障
3.2 给您的站点添加dspam标识按钮
3.3 访问CVS
General DSPAM Information
1.0 About DSPAM
1.1 Installation
1.2 Testing
1.3 Troubleshooting
1.4 DSPAM Tools
1.5 Agent Commandline Arguments
Advancced DSPAM functionality
2.0 Linking with libdspam
2.1 Configuring groups
2.2 External Inoculation Theory
2.3 Client/Server Mode
2.4 LMTP
Miscellaneous
3.0 Bugs, Ports, and the like
3.1 Known Bugs
3.2 Adding the dspam logo button to your website
3.3 CVS Access
1.0 ABOUT DSPAM
DSPAM是一个开放源代码，通过使用较高级的统计分析工具加上deobfuscation技术以及其他相关的方法，
来直接用于抗击商业邮件的反垃圾方案中。DSPAM能够学习每个用户的不同邮件的习性：根据这些习性告诉
过滤器什么是垃圾邮件。这就使得即使在一个非常庞大的系统中，DSPAM仍要为每个用户提供高精确度的、智能
的过滤功能。他提供了一个能够学习每个用户的邮件习性的管理维护功能，这些习性可能带有些许的假阳性
（false positives）。DSPAM是非常流行的防垃圾工具之一，他成功地完成了真正精确的垃圾过滤功能， 字串1
并且迅速获得一个巨大的支持论坛。
DSPAM is an open-source, freely available anti-spam solution designed to combat
unsolicited commercial email using an advanced implementation of statistical
analysis coupled with deobfuscation techniques and other related approaches.
DSPAM is capable of learning each user's individual mail behavior based on
what they tell the filter spam is and isn't. This allows DSPAM to provide
highly-accurate, personalized filtering for each user on even a large
system. This provides an administratively maintenance free system capable of
learning each user's email behaviors with very few false positives.
DSPAM is among one of the more popular and successful attempts at truly
accurate spam filtering, and is rapidly gaining a large support forum.
Contributions to the project are welcome via the dspam-dev mailing list.
DSPAM可以通过一下两种方式实现：
1.DSPAM邮件代理提供服务器支持的垃圾过滤，隔离箱，和一个促进系统进行自动分析垃圾的机制。支持先
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进的特性，例如，进/出选择（opt-in/opt-out）过滤，接种（inoculation），和共享组群。
2.开发人员可以把他们的项目连接到dspam的内核引擎（libdspam）中，并与GPL协议许可证一致。这就使
得开发人员可以把libdspam立即并入自己的垃圾过滤应用软件:例如邮件客户机，其他的反垃圾邮件工具，等等。
许多基本原则合成了这个代理，在http://paulgraham.com/spam.html网站上可以看到PaulGraham抗击垃圾
邮件的白皮书中写到了这些原则。人们对原始内核提出可许多新的方法，有些方法的说明可以在DSPAM主页
的白皮书中看到。
DSPAM can be implemented in one of two ways:
1. The DSPAM mailer-agent provides server-side spam filtering, quarantine
box, and a mechanism for forwarding spams into the system to be automatically
analyzed. Advanced features, such as opt-in/opt-out filtering, inoculation,
and shared groups are supported.
2. Developers may link their projects to the dspam core engine (libdspam) in
accordance with the GPL license agreement. This enables developers to
incorporate libdspam as a "drop-in" for instant spam filtering within their
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applications - such as mail clients, other anti-spam tools, and so on.
Many of the foundational principles incorporated into this agent were
contributed by Paul Graham's white paper on combatting SPAM, which can be
found at http://paulgraham.com/spam.html. Many new approaches have been
layered on top of the original core, some of which may be explained in
white papers on the DSPAM home page.
DSPAM可以分解成以下几部分：
DSPAM内核引擎
DSPAM内核引擎，即libdspam，提供几乎所有主要的垃圾过滤函数。该引擎连接到其他的dspam构件（或shell）
上提供功能性。内核引擎能够同任何其他的应用软件连接，并作为”顺便拜访者“向邮件客户机，或其他的
反垃圾工具、或其他类似的项目提供垃圾过滤功能，并使之受益于此。许多静态的和共享的版本就是通过.libs
下的libtool建立的。
libdspam提供一个存储驱动提取层，这使得开发人员可以较容易的理解信息是如何被存储在系统（例如Berkeley