blocks|key|903110|text|像素跟踪是跟踪开放率的唯一方法。然后，您的电子邮件中的链接也会通过重定向服务来跟踪，以获取点击率。绝对没有什么是万无一失的。您将不得不使用一些猜测工作，以确定您的实际开放率，因为一些电子邮件客户端将只采取文本版本，而不是html，还有一些客户端不加载图像默认。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|903111|SilverPop是一个很受欢迎的。他们实际上在后端使用PowerMTA。我们的公司刚刚结束了许可PowerMTA和编写我们自己的前端和跟踪。|offset|length|903112|entityMap|0|LINK|mutability|MUTABLE|url|http://www.silverpop.com/|1|http://www.port25.com/products/prod_index.html^0|0|0|9|0|S|8|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@$D|R|E|S|1|T]|$D|U|E|V|1|W]]|A|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]|N|$5|I|J|K|A|$L|O]]]]

Pixel tracking is the only way to track open rates. Then the links in your emails are also tracked through a redirect service for click rates. Absolutely nothing is going to be foolproof. You will have to use some guess work to figure out your actual open rate since some email clients will only take the text version and not the html and also some clients do not load images by default.

<a href="http://www.silverpop.com/" rel="nofollow noreferrer">SilverPop</a> is a popular one. They actually use <a href="http://www.port25.com/products/prod_index.html" rel="nofollow noreferrer">PowerMTA</a> on the back-end. Our company just ended up licensing PowerMTA and writing our own front-end and tracking.

blocks|key|903122|text|是的，这是唯一的办法。考虑一下，电子邮件本质上是静态的。了解某人是否“打开”电子邮件的唯一方法是电子邮件将一些信息发送回您的服务器。现在大多数电子邮件客户端都支持HTML电子邮件，这意味着您可以通过嵌入适当的HTML标记，让客户端从服务器请求图像(或其他任何东西)。除此之外，您不能强迫电子邮件客户端做任何它不想做的事情。这是远程计算机上的一个单独的程序，你无法控制它。|type|ordered-list-item|depth|inlineStyleRanges|entityRanges|data|903123|不没有万无一失的办法。总会有你无法追踪的电子邮件。如果有人在阅读之前下载了他们的电子邮件并断开了网络连接，你就无法追踪这封邮件。大多数电子邮件客户端允许您现在也禁用图像加载，如果你想，这样也可以阻止跟踪。|903124|我通常是自己写的，所以我不知道该推荐什么。我想大多数服务都是非常相似的，所以我会根据它们的前端使用的容易程度来做出产品/购买决定。|903125|unstyled|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|J|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|K|8|@]|9|@]|A|$]]|$1|F|3|-4|5|G|7|L|8|@]|9|@]|A|$]]]|H|$]]

<ol>
<li>Yes, this is pretty much the only way to do it. Consider that an email is something that is inherently static. The only way to know if someone has "opened" an email is for the email to send some information back to your server. Most email clients these days support HTML emails, which means that you can get the client to request an image (or anything else) from your server by embedding the proper HTML tags. Other than this, you cannot force an email client to do anything it doesn't want to do. It's a separate program on a remote computer, and you have no control over it.</li>
<li>No, there's no foolproof way. There will always be emails you can't track. If someone downloads their email and disconnects from the internet before reading it, you can't track that email. Most email clients allow you to disable image loading now as well if you want to, so that can block tracking too.</li>
<li>I've usually written my own, so I wouldn't know what to recommend. I imagine most services will be quite similar, so I'd base a product/purchase decision on how easy their front-end is to use.</li>
</ol>

blocks|key|982979|text|这是最好的方式，也不是理想的-许多电子邮件客户一开始就阻止图像。|type|ordered-list-item|depth|inlineStyleRanges|entityRanges|data|982980|不，没有方法是万无一失的。一个万无一失的检测方法，如果有人读过电子邮件，将是一个重大的隐私问题。|982981|我使用过ExactTarget和CampaignMonitor的跟踪系统。这两种方法都能很好地跟踪趋势--也就是说，打开电子邮件#1的人数是#2的两倍--但你永远不知道有多少未打开的邮件是因为图片没有显示。|982982|unstyled|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|J|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|K|8|@]|9|@]|A|$]]|$1|F|3|-4|5|G|7|L|8|@]|9|@]|A|$]]]|H|$]]

<ol>
<li>This is the best way, and it's hardly ideal - many e-mail clients block images to start with.</li>
<li>No, no methods are foolproof. A foolproof method of detecting if someone had read an e-mail would be a significant privacy issue.</li>
<li>I've used ExactTarget and CampaignMonitor's tracking systems. Both worked pretty well for tracking trends - i.e. twice as many people opened e-mail #1 than #2 - but you never know how many missed opens there are due to images not being shown.</li>
</ol>

blocks|key|903147|text|不这不是唯一的办法。您的HTML电子邮件可以参考web服务器的“某些内容”，然后跟踪。这可能是一个图像，一个样式表，一些Javascript，等等。大多数邮件客户都讨厌它，没有任何自动化的保证工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|903148|获得收件人的信任，并邀请他们访问您的网站。轨道点击。|903149|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

No it's not the only way. Your HTML e-mail can refer to a web server for 'some content' which is then tracked. That could be an image, a stylesheet, some Javascript, etc. Most mail clients hate it and nothing automated is guaranteed to work.

Gain the trust of your recipient and invite them to your website. Track clicks.

blocks|key|2429071|text|除了像素跟踪之外，跟踪开放率的第二种方法是寻找点击率。如果有人点击了，那么他们一定是打开了。这种情况并不常见，但重要的是不要丢弃这些数据。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2429072|更多详细信息：|2429073|MailChimp如何跟踪开放率|unordered-list-item|offset|length|2429074|CampaignMonitor如何跟踪开放率|2429075|维基百科电子邮件开放率|2429076|哈勃关于公开汇率问题的讨论|2429077|entityMap|0|LINK|mutability|MUTABLE|url|http://kb.mailchimp.com/article/how-to-code-html-emails|1|http://www.campaignmonitor.com/blog/post/2395/all-about-email-open-rates/|2|http://en.wikipedia.org/wiki/E-mail_open_rate|3|http://blog.hubspot.com/blog/tabid/6307/bid/4214/Email-Open-Rate-Metrics-Why-Falling-Why-Unreliable.aspx^0|0|0|0|G|0|0|0|M|1|0|0|B|2|0|0|D|3|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|14|8|@]|9|@$G|15|H|16|1|17]]|A|$]]|$1|I|3|J|5|F|7|18|8|@]|9|@$G|19|H|1A|1|1B]]|A|$]]|$1|K|3|L|5|F|7|1C|8|@]|9|@$G|1D|H|1E|1|1F]]|A|$]]|$1|M|3|N|5|F|7|1G|8|@]|9|@$G|1H|H|1I|1|1J]]|A|$]]|$1|O|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]|W|$5|R|S|T|A|$U|X]]|Y|$5|R|S|T|A|$U|Z]]|10|$5|R|S|T|A|$U|11]]]]

In addition to pixel tracking, a second way to track open rates is by looking for clickthroughs. If someone clicked through, then they must have opened it. This is infrequent, but it's important not to throw this data away.

More details:

<ul>
<li><a href="http://kb.mailchimp.com/article/how-to-code-html-emails" rel="noreferrer">How MailChimp tracks open rates</a></li>
<li><a href="http://www.campaignmonitor.com/blog/post/2395/all-about-email-open-rates/" rel="noreferrer">How CampaignMonitor tracks open rates</a></li>
<li><a href="http://en.wikipedia.org/wiki/E-mail_open_rate" rel="noreferrer">Wikipedia on email open rates</a></li>
<li><a href="http://blog.hubspot.com/blog/tabid/6307/bid/4214/Email-Open-Rate-Metrics-Why-Falling-Why-Unreliable.aspx" rel="noreferrer">Hubspot on open rate issues</a></li>
</ul>

blocks|key|903272|text|Facebook除了使用这样的img元素之外，还使用了bgsound元素：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|903273|<img+src="http://www.facebook.com/email_open_log_pic.php?mid=999999999999"
++++++++++++++++++style="border:0;width:1px;height:1px;"+/>
<bgsound+src="http://www.facebook.com/email_open_log_pic.php?mid=99999999999&s=a"
++++++++++++++++++volume="-10000"+/>|code-block|syntax|javascript|903274|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Facebook uses a bgsound element in addition to an img element like this: 

<pre><code>&lt;img src="http://www.facebook.com/email_open_log_pic.php?mid=999999999999"
 style="border:0;width:1px;height:1px;" /&gt;
&lt;bgsound src="http://www.facebook.com/email_open_log_pic.php?mid=99999999999&amp;s=a"
 volume="-10000" /&gt;
</code></pre>

Most services offered online today that claim to "track" e-mails, do so by embedding images in the emails. My questions are:

<ol>
<li>Is this the only way to do it and if not, what are the other methods?</li>
<li>Are any of the methods actually fool-proof?</li>
<li>Has anybody had any luck with specific software or even an online group?</li>
</ol>

Mass email tracking

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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今天的大多数在线服务都声称“跟踪”电子邮件，通过在电子邮件中嵌入图像来做到这一点。我的问题是：这是唯一的方法吗?如果没有，其他的方法是什么？这些方法中有任何一种实际上是防伪的吗？有没有人对特定的软件，甚至是一个在线小组有任何运气？

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