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	<title>Blog Behind GFW &#187; Domain</title>
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	<description>在墙后面写博客...</description>
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			<item>
		<title>给域名添加SPF记录</title>
		<link>http://www.behindgfw.com/archives/2009/03/domain-spf-record.html</link>
		<comments>http://www.behindgfw.com/archives/2009/03/domain-spf-record.html#comments</comments>
		<pubDate>Wed, 18 Mar 2009 06:51:14 +0000</pubDate>
		<dc:creator>behindGFW</dc:creator>
				<category><![CDATA[WebDev]]></category>
		<category><![CDATA[Domain]]></category>
		<category><![CDATA[Spam]]></category>

		<guid isPermaLink="false">http://www.behindgfw.com/archives/2009/03/domain-spf-record.html</guid>
		<description><![CDATA[独立域名博客在收到主机寄过来的邮件时，邮件头会经常显示如下两行：
Received-SPF: neutral (google.com: 72.47.192.112 is neither permitted nor denied by best guess record for domain of wordpress@your_domain.com) client-ip=72.47.192.112;
Received-SPF: fail (google.com: domain of wordpress@your_domain.com does not designate 72.47.192.112 as permitted sender) client-ip=72.47.192.112;
Authentication-Results: mx.google.com; spf=hardfail (google.com: domain of wordpress@your_domain.com does not designate 72.47.192.112 as permitted sender) smtp.mail=wordpress@your_domain.com
Received-SPF: softfail (google.com: domain of transitioning wordpress@your_domain.com does not designate 72.47.192.112 [...]]]></description>
			<content:encoded><![CDATA[<p>独立域名博客在收到主机寄过来的邮件时，邮件头会经常显示如下两行：</p>
<blockquote><p>Received-SPF: neutral (google.com: 72.47.192.112 is neither permitted nor denied by best guess record for domain of wordpress@your_domain.com) client-ip=72.47.192.112;</p></blockquote>
<blockquote><p>Received-SPF: fail (google.com: domain of wordpress@your_domain.com does not designate 72.47.192.112 as permitted sender) client-ip=72.47.192.112;<br />
Authentication-Results: mx.google.com; spf=hardfail (google.com: domain of wordpress@your_domain.com does not designate 72.47.192.112 as permitted sender) smtp.mail=wordpress@your_domain.com</p></blockquote>
<blockquote><p>Received-SPF: softfail (google.com: domain of transitioning wordpress@your_domain.com does not designate 72.47.192.112 as permitted sender) client-ip=72.47.192.112;<br />
Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning wordpress@your_domain.com does not designate 72.47.192.112 as permitted sender) smtp.mail=wordpress@your_domain.com</p></blockquote>
<p>对一个完美主义者来说，出现“Fail”是不可接受的，这种邮件被Gmail扔进Spam的几率比较大哦。这是你域名的SPF记录没配置好出现验证失败的缘故，那什么是SPF呢？</p>
<p>由于同一个域名可能透过多台的mail server或是ISP寄信，通过IP地址来反向解析看是否为伪造信件的方式就不够用了（我们也经常可以收到发件人是自己的垃圾邮件）。因此就有域名验证的观念出来了，共包括domain key和SPF这两大类，都必须在网域名称的DNS记录中加入一笔记录。</p>
<p>SPF(或是Sender ID)是Sender Policy Framework的缩写。当你定义了你域名的SPF记录后，接收邮件方会根据你的SPF记录来判断连接过来的IP地址是否被包含在SPF记录里面，如果在，则认为是一封正确的邮件，否则则认为是一封伪造的邮件。现在绝大部份反垃圾邮件系统都支持SPF过滤，这种过滤一般不会有误判，除非是邮件系统管理员自己把SPF记录配置错误或遗漏.</p>
<p>至于domain key则是由Yahoo所提出的。必需配合软件和加密技术，比较麻烦。目前使用的也不多。 Google目前所谓的支援domainkey也只是在寄信的时候加入，免得被yahoo退信，本身并没有要求寄件者要有domainkey。</p>
<p>正确设置后邮件头一般显示如下：</p>
<blockquote><p>Received-SPF: pass (google.com: domain of wordpress@your_domain.com designates 72.47.192.112 as permitted sender) client-ip=72.47.192.112;<br />
Authentication-Results: mx.google.com; spf=pass (google.com: domain of wordpress@your_domain.com designates 72.47.192.112 as permitted sender) smtp.mail=wordpress@your_domain.com</p></blockquote>
<p>关于SPF是否有设定的必要？一般认为有加上SPF比较好，怕万一碰到哪个收件服务器有采用SenderID机制来过滤信件的话就有用处了。</p>
<p>如何增加SPF记录，非常简单，在DNS里面添加TXT记录即可，可以使用下面两个SPF生成检查工具：<br />
<a href="http://www.microsoft.com/mscorp/safety/content/technologies/senderid/wizard/default.aspx">http://www.microsoft.com/mscorp/safety/content/technologies/senderid/wizard/default.aspx</a><br />
<a href="http://old.openspf.org/wizard.html"> http://old.openspf.org/wizard.html</a></p>
<p><img class="alignnone" title="SPF" src="https://oan6sg.blu.livefilestore.com/y1mHktY4EWc6gjNMZCYcbz27AQ-edIw9NHGIfKgKgbQwGRLw9egjxn5aWt76HT8OhrvExAg02cPiTbbabrreb1z2b80hzM2nhwGrNUQtWsXhqAoYYIF6EIlMmX4VDqkWmcjKszzZWc6prA/image_thumb" alt="" width="400" height="80" /></p>
<p>a 你域名的A记录，一般选择yes，因为他有可能发出邮件，比如我上面提到的Wordpress的回信。<br />
mx 一般也是yes，MX服务器会有退信等。<br />
ptr 选择no，官方建议的。<br />
inlude 如果有可能通过一个isp来发信，isp有自己的SPF记录，则填入这个isp的域名。比如你使用Google Apps，应该增加include:google.com记录，因为你的邮件时从Google服务器发出去的。<br />
ip4： 你还有没有其他的ip发信？可能你的smtp服务器是独立出来的，那么就填入你的IP地址或者网段。<br />
~all: 意思是除了上面的，其他的都不认可。当然是yes了。</p>
<p>再检查下，进入cmd（以Google.com为例）:</p>
<blockquote><p><strong>C:\Documents and Settings\&gt;</strong>nslookup<br />
Default Server:  resolver1.opendns.com<br />
Address:  208.67.222.222&gt;<br />
<strong>&gt;</strong> set type=txt<br />
<strong>&gt;</strong><br />
<strong>&gt;</strong> google.com<br />
Server:  resolver1.opendns.com<br />
Address:  208.67.222.222</p>
<p>Non-authoritative answer:<br />
google.com      text =</p>
<p>&#8220;v=spf1 include:_netblocks.google.com ~all&#8221;<br />
<strong>&gt;</strong><br />
<strong>&gt;</strong> _netblocks.google.com<br />
Server:  resolver1.opendns.com<br />
Address:  208.67.222.222</p>
<p>Non-authoritative answer:<br />
_netblocks.google.com   text =</p>
<p>&#8220;v=spf1 ip4:216.239.32.0/19 ip4:64.233.160.0/<br />
2.14.192.0/18 ip4:209.85.128.0/17 ip4:66.102.0.0/20 i<br />
0.0/20 ip4:207.126.144.0/20 ?all&#8221;<br />
<strong>&gt;</strong><br />
<strong>&gt;</strong>behindgfw.com<br />
Server:  resolver1.opendns.com<br />
Address:  208.67.222.222</p>
<p>Non-authoritative answer:<br />
behindgfw.com   text =</p>
<p>&#8220;v=spf1 a a:fwolf.com mx include:google.com ~all&#8221;</p></blockquote>
<p>ok，都设置好了，给check-auth@verifier.port25.com发封邮件，很快会有回信告诉你设置是否正确。或者在<a href="http://69.56.15.194/">http://69.56.15.194/</a>找到一个形如XXXX@69.56.15.194的邮箱地址，发封邮件，点击“view sample”就可以看见你的检测结果了。这两种方式都会返回详细的SPF check、DomainKeys check、DKIM check、Sender-ID check结果。</p>
<p>至于那些域名注册商支持添加SPF记录，可以在如下网址检查：<br />
<a href="http://www.kitterman.com/spf/txt.html">http://www.kitterman.com/spf/txt.html</a></p>
<p>参考链接：<br />
RFC4408 <a href="http://www.ietf.org/rfc/rfc4408.txt">http://www.ietf.org/rfc/rfc4408.txt</a><br />
<a href="http://blog.sina.com.cn/s/blog_44652a83010004y7.html">Chifeng</a></p>
<h3  class="related_post_title">相关文章</h3><ul class="related_post"><li><a href="http://www.behindgfw.com/archives/2007/08/several_dns_host_tools.html" title="几个域名、主机工具">几个域名、主机工具</a></li><li><a href="http://www.behindgfw.com/archives/2006/08/blog-post_01.html" title="头痛的垃圾邮件">头痛的垃圾邮件</a></li><li><a href="http://www.behindgfw.com/archives/2006/04/host.html" title="贴一个host文件">贴一个host文件</a></li><li><a href="http://www.behindgfw.com/archives/2006/02/blog-post_22.html" title="发垃圾邮件的当心了">发垃圾邮件的当心了</a></li></ul><hr />
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		</item>
		<item>
		<title>几个域名、主机工具</title>
		<link>http://www.behindgfw.com/archives/2007/08/several_dns_host_tools.html</link>
		<comments>http://www.behindgfw.com/archives/2007/08/several_dns_host_tools.html#comments</comments>
		<pubDate>Thu, 02 Aug 2007 08:42:50 +0000</pubDate>
		<dc:creator>zdpress</dc:creator>
				<category><![CDATA[WebDev]]></category>
		<category><![CDATA[Domain]]></category>
		<category><![CDATA[Host]]></category>

		<guid isPermaLink="false">http://www.behindgfw.com/archives/2007/08/several_dns_host_tools.html</guid>
		<description><![CDATA[1、Who is Hosting This
可以查询域名是被那家主机商所托管。
2、MyIPneighbors
MyIPneighbors是一个查询共用IP网站的服务。通过输入域名或者网页IP地址，便能够自动搜索出在同一IP上的其它网站列表，可以通过IFrame调用来快速查看网站内容。
3、Web Lookup Tools
域名查询、Mx查询、Whois查询、等等&#8230;其实网络上类似工具很多，不过这个够简单。
4、Check Server Headers Tool &#8211; HTTP Status Codes Checker
301重定向检测工具，网络上也有很多类似的Server Header检查工具。错误的302重定向有可能象Business.com一样遭Google惩罚，所以一定要认真检查一下确保网站实施了正确的301重定向。
相关文章贴一个host文件给域名添加SPF记录
© 2009 BehindGFW &#124;
订阅 &#124;
本文链接 &#124;
评论 &#124;
添加到del.icio.us]]></description>
			<content:encoded><![CDATA[<p>1、<a href="http://www.whoishostingthis.com/">Who is Hosting This</a><br />
可以查询域名是被那家主机商所托管。<br />
2、<a href="http://www.myipneighbors.com/">MyIPneighbors</a><br />
MyIPneighbors是一个查询共用IP网站的服务。通过输入域名或者网页IP地址，便能够自动搜索出在同一IP上的其它网站列表，可以通过IFrame调用来快速查看网站内容。<br />
3、<a href="http://www.mob.net/%7Eted/tools/index.html">Web Lookup Tools</a><br />
域名查询、Mx查询、Whois查询、等等&#8230;其实网络上类似工具很多，不过这个够简单。<br />
4、<a href="http://www.seoconsultants.com/tools/headers/">Check Server Headers Tool &#8211; HTTP Status Codes Checker</a><br />
301重定向检测工具，网络上也有很多类似的Server Header检查工具。错误的302重定向有可能象Business.com一样遭<a href="http://www.google.com/search?q=Business.com+%E9%87%8D%E5%AE%9A%E5%90%91+%E6%83%A9%E7%BD%9A">Google惩罚</a>，所以一定要认真检查一下确保网站实施了正确的301重定向。</p>
<h3  class="related_post_title">相关文章</h3><ul class="related_post"><li><a href="http://www.behindgfw.com/archives/2006/04/host.html" title="贴一个host文件">贴一个host文件</a></li><li><a href="http://www.behindgfw.com/archives/2009/03/domain-spf-record.html" title="给域名添加SPF记录">给域名添加SPF记录</a></li></ul><hr />
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		</item>
		<item>
		<title>贴一个host文件</title>
		<link>http://www.behindgfw.com/archives/2006/04/host.html</link>
		<comments>http://www.behindgfw.com/archives/2006/04/host.html#comments</comments>
		<pubDate>Fri, 21 Apr 2006 08:48:00 +0000</pubDate>
		<dc:creator>zdpress</dc:creator>
				<category><![CDATA[Hack]]></category>
		<category><![CDATA[Domain]]></category>
		<category><![CDATA[Host]]></category>
		<category><![CDATA[Tips]]></category>

		<guid isPermaLink="false">http://behindgfw.com/archives/2006/04/%e8%b4%b4%e4%b8%80%e4%b8%aahost%e6%96%87%e4%bb%b6.html</guid>
		<description><![CDATA[贴一个host文件，提供本地的域名解析，文件地址windows\system32\drivers\etc\。
# Copyright (c) 1993-1999 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The [...]]]></description>
			<content:encoded><![CDATA[<p>贴一个host文件，提供本地的域名解析，文件地址windows\system32\drivers\etc\。</p>
<blockquote style="margin-right: 0px" dir="ltr"><p># Copyright (c) 1993-1999 Microsoft Corp.<br />
#<br />
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.<br />
#<br />
# This file contains the mappings of IP addresses to host names. Each<br />
# entry should be kept on an individual line. The IP address should<br />
# be placed in the first column followed by the corresponding host name.<br />
# The IP address and the host name should be separated by at least one<br />
# space.<br />
#<br />
# Additionally, comments (such as these) may be inserted on individual<br />
# lines or following the machine name denoted by a &#8216;#&#8217; symbol.<br />
#<br />
# For example:<br />
#<br />
#      102.54.94.97     rhino.acme.com          # source server<br />
#       38.25.63.10     x.acme.com              # x client host127.0.0.1       localhost</p>
<p># 解析国内DNS经常不解析的站点<br />
64.233.185.19   mail.google.com<br />
64.233.161.147  www.google.com<br />
64.233.167.147  groups.google.com<br />
64.233.167.104  groups-beta.google.com<br />
66.249.89.99    google.com<br />
#66.249.89.104   www.google.com</p>
<p># 屏蔽恶意站点<br />
127.0.0.1       www.cnnic.net.cn<br />
127.0.0.1       www.umov.com<br />
127.0.0.1       3721.com<br />
127.0.0.1       cns.3721,com<br />
127.0.0.1       cnsmin.3721,com<br />
127.0.0.1       download.3721.com<br />
127.0.0.1  bar.baidu.com #百度IE搜索伴侣<br />
127.0.0.1  download.3721.com<br />
127.0.0.1  3721.com #3721网络实名<br />
127.0.0.1  3721.net #3721网络实名<br />
127.0.0.1  cnsmin.3721.com #3721网络实名<br />
127.0.0.1  cnsmin.3721.net #3721网络实名<br />
127.0.0.1  download.3721.com #3721网络实名<br />
127.0.0.1  download.3721.net #3721网络实名<br />
127.0.0.1  www.3721.com #3721网络实名<br />
127.0.0.1  www.3721.net #3721网络实名<br />
127.0.0.1  www.qq101.com ##2004-04-17更新<br />
127.0.0.1  www.qq235.com ##剧毒，真想olo死这个7黑！<br />
127.0.0.1  www.qq520.com<br />
127.0.0.1  www.dj3344.com<br />
127.0.0.1  www.qq168.net<br />
127.0.0.1  www.777888.com<br />
127.0.0.1  www.5dsoft.com<br />
127.0.0.1  www.wokoo.net<br />
127.0.0.1  movie.sx.zj.cn<br />
127.0.0.1  www.yeapple.com<br />
127.0.0.1  xyxy68.8u8.net<br />
127.0.0.1  www.youmiss.com<br />
127.0.0.1  www.cctv8.net<br />
127.0.0.1  www.yyqy.com<br />
127.0.0.1  winzheng.126.com<br />
127.0.0.1  www.sunvod.com<br />
127.0.0.1  www.t168.com<br />
127.0.0.1  www.boliwo.com<br />
127.0.0.1  www.coolcdrom.com<br />
127.0.0.1  www.zhengdian.comoe<br />
127.0.0.1  www.girlchinese.com<br />
127.0.0.1  www.yibinren.com<br />
127.0.0.1  www.mtv51.com<br />
127.0.0.1  www.163 [1].com<br />
127.0.0.1  www.37021.com<br />
127.0.0.1  www.cnqb.net<br />
127.0.0.1  www.qq3344.com<br />
127.0.0.1  www.qq3344.net<br />
127.0.0.1  www.3322.net<br />
127.0.0.1  www.58589.com<br />
127.0.0.1  www.ftlink.net<br />
127.0.0.1  home.kimo.com.tw<br />
127.0.0.1  www.pixpox.com<br />
127.0.0.1  www.k163.com<br />
127.0.0.1  www.pk.com<br />
127.0.0.1  204.177.92.68<br />
127.0.0.1  www.fassia.net<br />
127.0.0.1  www.ehomeday.com<br />
127.0.0.1  www.jinpin.net<br />
127.0.0.1  www.i-lookup.com<br />
127.0.0.1  www.58p.com<br />
127.0.0.1  www.7sou.com<br />
127.0.0.1  www.ok530.com<br />
127.0.0.1  www.58q.com<br />
127.0.0.1  www.58q.com<br />
127.0.0.1  www.0970.net:8000<br />
127.0.0.1  www.qq550.com<br />
127.0.0.1  www.qq720.com<br />
127.0.0.1  http://www.dj3344.com<br />
127.0.0.1  http://www.qq168.net<br />
127.0.0.1  http://www.777888.com<br />
127.0.0.1  http://WWW.5dsoft.com<br />
127.0.0.1  http://www.wokoo.net<br />
127.0.0.1  http://movie.sx.zj.cn<br />
127.0.0.1  http://yeapple.com<br />
127.0.0.1  http://xyxy68.8u8.net<br />
127.0.0.1  http://www.youmiss.com<br />
127.0.0.1  http://www.cctv8.net<br />
127.0.0.1  http://www.kuliao.com<br />
127.0.0.1  http://www.yyqy.com<br />
127.0.0.1  http://winzheng.126.com<br />
127.0.0.1  http://www.sunvod.com<br />
127.0.0.1  http://www.t168.com<br />
127.0.0.1  http://www.boliwo.com<br />
127.0.0.1  http://www.coolcdrom.com<br />
127.0.0.1  http://www.zhengdian.com<br />
127.0.0.1  http://girlchinese.com<br />
127.0.0.1  http://www.yibinren.com<br />
127.0.0.1  http://www.mtv51.com<br />
127.0.0.1  http://www.163[1].c<br />
127.0.0.1  http://www.37021.com<br />
127.0.0.1  http://www.cnqb.net<br />
127.0.0.1  http://www.qq3344.com<br />
127.0.0.1  http://youlove.3322.net/picture.exe<br />
127.0.0.1  http://www.58589.com<br />
127.0.0.1  http://tty.yyun.net<br />
127.0.0.1  http://www.ftlink.net<br />
127.0.0.1  http://home.kimo.com.tw/avnvyou520<br />
127.0.0.1  http://www.pixpox.com<br />
127.0.0.1  http://www.k163.com<br />
127.0.0.1  http://www.pk.com<br />
127.0.0.1  http://www.xxx.com<br />
127.0.0.1  http://204.177.92.68/rotate/r3.jhtml<br />
127.0.0.1  http://www.fassia.net<br />
127.0.0.1  http://www.ehomeday.com<br />
127.0.0.1  http://www.jinpin.net<br />
127.0.0.1  http://zbszx.vicp.net<br />
127.0.0.1  http://hothack.home<br />
127.0.0.1  http://www.girl008.com<br />
127.0.0.1  http://www.a521.com<br />
127.0.0.1  http://www.126p.com<br />
127.0.0.1  hjcz.www30.cnidc.cn/wyhk/love.html<br />
127.0.0.1  hjcz.www30.cnidc.cn/wyhk/shan.html<br />
127.0.0.1  hjcz.www30.cnidc.cn/wyhk/aibuwan.html<br />
127.0.0.1  hjcz.www30.cnidc.cn/wyhk/shiyan1.html<br />
127.0.0.1  hjcz.www30.cnidc.cn/wyhk/g1.html<br />
127.0.0.1  http://www.ttjj.com.cn<br />
127.0.0.1  http://www.aogo.net<br />
127.0.0.1  www.mydj2005.com<br />
127.0.0.1  http://community.rising.com.cn<br />
127.0.0.1  52.www.tvliao.com<br />
127.0.0.1  http://www.7mao.com</p></blockquote>
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