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<title><![CDATA[gOxiA=苏繁=SuFan Blog]]></title> 
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<description><![CDATA[gOxiA,苏繁,sufan,Microsoft MVP]]></description> 
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<link>https://sufan.maytide.net/read.php/663.htm</link>
<title><![CDATA[实现SPF垃圾邮件防护功能]]></title> 
<author>gOxiA &lt;sufan_cn@msn.com&gt;</author>
<category><![CDATA[Exchange Server]]></category>
<pubDate>Wed, 15 Mar 2006 02:13:02 +0000</pubDate> 
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	<p><font face="verdana,arial,helvetica,sans-serif"><font color="#000000" size="2">SenderID （寄件人身份识别技术）。</font></font></p><p><font face="verdana,arial,helvetica,sans-serif" color="#000000" size="2">SPF（SenderPolicyFramework，寄件人政策架构）。</font></p><p><font size="2"><font color="#cc0033">SenderID</font>技术与<font color="#cc0033">SPF</font>一样，都是一种以IP（互联网协定）位址认证电子邮件寄件人身份的技术。</font></p><p><font size="2">SenderID的创建向导地址是：<a href="http://www.microsoft.com/mscorp/safety/content/technologies/senderid/wizard/">http://www.microsoft.com/mscorp/safety/content/technologies/senderid/wizard/</a></font></p><p><font size="2">要查看其他邮件域的SPF值，只需要在CMD下运行：</font></p><p><font size="2"><div class="code">nslookup</font></p><p><font size=\"2\">set type=txt</div></font></p><p><font size="2">这里假如我们要查询163.com的SPF值，那么就键入163.com</font></p><p><font size="2">会得到以下结果：</font></p><p><font size="2"><div class="code">163.com text =</font></p><p><font size=\"2\"> <font color=\"#ff0000\">&quot;v=spf1 ip4:220.181.12.0/22 ip4:202.108.9.128/25 ip4:202.108.5.0/24 ?all&quot;</font></font></p><p><font size=\"2\">163.com nameserver = ns3.nease.net<br />163.com nameserver = ns.nease.net<br />ns.nease.net    internet address = 202.106.185.75<br />ns3.nease.net   internet address = 220.181.28.3</div></font></p><p><font size="2">其中红色高亮部分就是SPF值，从这个值中我们可以得到163.com有效的邮件服务器是哪些。</font></p>
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