如何知道电子邮件是由recepeint使用VB.NET读取的？ [英] How to know that email has been read email by recepeint, using VB.NET?
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问题描述
how to know that email has been read email by recepeint, using vb.net?
我的尝试：
What I have tried:
mailMsg.Headers.Add("Disposition-Notification-To", strReplyTo)
推荐答案
你不能。
ven如果你指定需要阅读收据，由客户电子邮件应用程序来决定做什么。有些人会忽略它，有些人问用户是否愿意，有些可以设置为自动发送。
有些人在预览中忽略它，其他人在预览中遵守它。没有硬性和快速的规则。
确保阅读电子邮件的唯一方法是要求点击您的网站可以点击的链接监视器（通常使用GUID查询字符串来确认读取了哪个电子邮件）。
You can't.
ven if you specify "read receipt required" it's up to the client email app to decide what to do. Some ignore it, some ask the user if he wants to, some can be set to auto send.
Some ignore it in preview, others obey it in preview. There is no "hard and fast" rule.
The only way to be sure than an email has been read is to require a link to be clicked which your site can monitor (usually using a GUID query string to confirm which email was read).
如果收件人不想通知您他已阅读该邮件，则您没有可靠的强制方法。
我的TB设置为在读取消息时从不通知，默认显示为文本。
即使我切换到html，它也会问我是否要加载远程包含。
If recipient don't want to notify you that he read the message, you have no reliable way to enforce.
My TB is set to never notify when I read a message, it display as text by default.
Even when I switch to html, it ask me if I want to load distant contain.
先生我一直尝试这个代码在普通页面工作是完全的，但在电子邮件加载过程中它失败了吗？任何想法或请改进它。
Sir I has been try this code which is working in normal page is perfectely, but during email loading it failed? any Idea about this or please Improve it.
<html> <body onload=document.getElementById("gform").submit()>
<form id="gform" method="post" action="http://localhost:5456/Response.aspx?emailId=7011"></form>Welcome Dear User</body></html>
谢谢
Thanks
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