[header] How to know if your email was read [title] Find an email-tracking software. [step] Email trackers allow you to put a timestamp on your email so you can know whether it has been read or not. They essentially " track " your email as it is sent to the recipient. 
[substeps] Some can be downloaded while others can be added as an extension to the window. A few email trackers can also be used directly on their sites.