[mil1243]

Is there any code that we add it to our E-mails
and when the receiver open that Email, it inform
us that "Your E-mail opened by receiver !!!" ?

[Vormund]

Originally Posted by mil1243

Is there any code that we add it to our E-mails
and when the receiver open that Email, it inform
us that "Your E-mail opened by receiver !!!" ?

This page explains this nicely:
Request Return Receipt (email)?

You have return receipts which a user can decline at his or her own will, and the hidden tracking...but this can be blocked with newer clients as well (Thunderbird and Outlook, for example, don't load images without the user being in a safelist or the user hitting "Load Images"), and if that's the case...unless you're hosting the email server or something, there's no way to be for-sure. :freak: