How to know that email has been read email by recepeint, using VB.NET?

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how to know  that email has been  read email by recepeint,  using  vb.net?

What I have tried:

mailMsg.Headers.Add("Disposition-Notification-To", strReplyTo)

Posted 22-Oct-18 1:48am

ParkashKaur

Updated 13-Nov-18 21:35pm

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OriginalGriff · Answer 1 · 2018-10-22T02:21:00

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).

Patrice T · Answer 2 · 2018-10-22T04:02:00

Solution 2

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.

Posted 22-Oct-18 4:02am

Patrice T

ParkashKaur · Answer 3 · 2018-11-13T21:35:00

Solution 3

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>

Thanks

Posted 13-Nov-18 21:35pm

ParkashKaur

Comments

F-ES Sitecore 14-Nov-18 4:32am

Would you want email clients running javascript when you view them? Taking you to any page they want you to?

You've already been told you can't track when a user reads an email and that answer hasn't changed.

ParkashKaur 14-Nov-18 6:06am

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.

Welcome Dear User

Dave Kreskowiak 14-Nov-18 8:41am

First, you posted your question as a SOLUTION to someone elses question.

You cannot run javscript code in an HTML email. For security reasons, it's not allowed.

You have no way of tracking if a person reads an email or not, other than supplying a link the user MUST click in order for the email client to launch a web browser to that link.