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	<title>怡水若寒/王聪的博客 &#187; exchange</title>
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		<title>Exchange邮件系统发送微软和新浪邮箱无法抵达</title>
		<link>http://www.ysrh.com/index.php/exchange-microsoft-sina-rejection/</link>
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		<pubDate>Thu, 19 Mar 2009 10:34:20 +0000</pubDate>
		<dc:creator>怡水若寒</dc:creator>
				<category><![CDATA[应用技术]]></category>
		<category><![CDATA[exchange]]></category>
		<category><![CDATA[sina]]></category>

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    今天被领导很K了一顿，原因N多。主要爆发是因为领导使用公司邮箱给Hotmail和sina.com.cn发送邮件的时候对方无法收到。
微软的退信明细：
&#60;tianfu.tfsp.cn #5.5.0 smtp;550 DY-001 Mail rejected by Windows Live Hotmail for policy reasons. We generally do not accept email from dynamic IP&#8217;s as they are not typically used to deliver unauthenticated SMTP e-mail to an Internet mail server. http://www.spamhaus.org maintains lists of dynamic and residential IP addresses. If you are not an email/network admin [...]]]></description>
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<p style="text-align: left;">    今天被领导很K了一顿，原因N多。主要爆发是因为领导使用公司邮箱给Hotmail和sina.com.cn发送邮件的时候对方无法收到。</p>
<blockquote><p>微软的退信明细：<br />
&lt;tianfu.tfsp.cn #5.5.0 smtp;550 DY-001 Mail rejected by Windows Live Hotmail for policy reasons. We generally do not accept email from dynamic IP&#8217;s as they are not typically used to deliver unauthenticated SMTP e-mail to an Internet mail server. <a href="http://www.spamhaus.org">http://www.spamhaus.org</a> maintains lists of dynamic and residential IP addresses. If you are not an email/network admin please contact your E-mail/Internet Service Provider for help. Email/network admins, please visit <a href="http://postmaster.live.com">http://postmaster.live.com</a> for email delivery information and support&gt;<span id="more-16"></span></p></blockquote>
<blockquote><p>新浪的退信明细：<br />
&lt;tianfu.tfsp.cn #5.5.0 smtp;550 Rejected due to the sending MTA&#8217;s poor reputation. Please refer <a href="http://mail.sina.com.cn/help2/rwmail.html">http://mail.sina.com.cn/help2/rwmail.html</a>&gt;<br />
X-Display-Name: <a href="mailto:ysrh@sina.com.cn">ysrh@sina.com.cn</a></p></blockquote>
<p>懂技术的人应该很容易看得出，这个完全与本地邮件服务器没有任何关系。但是领导不能理解……</p>
<p>问题分析：<br />
根据退信指示，我查到目前公司所使用的邮件服务器的IP被垃圾邮件追踪机构spamhaus.org列为动态IP，而hotmail、yahoo、msn、live等使用的则是他们的规则。新浪的就更明显不过了，就是新浪的“超强”过滤。新浪这点应该是在国内早已是口诛笔伐了吧。</p>
<p>解决办法：<br />
向垃圾邮件追踪机构spamhaus.org提交我们的IP申请，因为我们其实是固定IP。抑或直接要求电信重新分配一个IP不在过滤规则里面的固定IP（经过现场测试，更换IP后发信正常）。至于新浪，按照新浪网的申请流程正常办理即可。</p>
<p>悲哀的一天！</p>
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