跟踪客户端是否阅读了电子邮件 [英] Track if the email is read by the client

问题描述

我需要跟踪用户是否阅读了系统生成的电子邮件. 为此，我目前正在将1x1 gif的img添加到电子邮件内容中，其中src指向托管的Web应用程序.在Web应用程序中，我添加了一个Servlet过滤器来跟踪所有GET请求.

I need to track if the email generated by the system is read by the user. For this, I am currently adding an img of 1x1 gif to the email content with src pointing to my hosted web application. In the web application, I have added a servlet filter to track all GET requests.

这是有效的，但是对于某些客户端，图像不会自动下载，因此我无法跟踪请求. 还有其他替代/更好的建议吗?我看过Ireadit和Spypig.使用它们是不可行的.

This is working, but for some clients the image is not automatically downloaded, hence I am not able to track the request. Any other alternative/better suggestions? I have seen Ireadit and Spypig. It's not feasible to use them.

推荐答案

否，没有万无一失的方法来检测是否已阅读电子邮件.正如您所发现的那样，所有主要电子邮件客户端中的隐私和安全限制都在一定程度上阻止了您的工作.

No, there is no fool-proof way of detecting if an email has been read. As you've found, privacy and security restrictions in all the major email clients exist in part to prevent what you're doing.

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