What is the best practice making an email tracking system?

Question

Hi,

I'm about to start on an an application where one of the features needed is a way for tracking emails reading status. I've been looking around the net and some of the apps out there uses remote images for tracking. So I was wandering what the best practice was here?

Thanks for your help.

Lars

Answer 1

Image tracking is probably the easiest way. But if the receiver of the email views it purely as plain text and disallows image loading, there's really nothing you can do to track when it was accessed.