Get alerts when the emails you send are opened

Jun 27, 2008

Inspired by, a site that helps you track when your emails are opened, I decided to see if I could write a script with the same functionality. It tuned out to be a rather interesting project.

Here it is:

It works by generating an image which you embed in your email. Then when your recipeint reads their email, their email client downloads that image. Downloading that image triggers a script on my server which then sends you an email.

In order to make the image look less suspicious I implemented a feature where the image is a string of text of the senders choosing. Example:

An Example of a tracker image from my email tracking project

Give it a try!