I’m working on making our email sending tool better and more complete by adding reports on how many of the sent emails have been successfully sent, recieved, opened, etc. for a client with special requests. I’ve looked around and couldnt find any reliable way to tell if a recipient opened the email as it seems like Read Receipt requests are usually ignored by most email clients.
Is there any way to do it reliably or am I stuck with the unreliable read receipt request method?
You can do that with a simple image (HTML Mails Only) in the mail …
Something like this
tracker.phpwould contain a simple script that can keep track of the user informationFor more Information See
Track Email Open
How to make a simple tracking image with PHP