Install the extension and connect your Google account. Tracking works once your company’s owner or an administrator has switched it on, and only for recipients whose consent is recorded, separately for opens and for links. Each image load and click appears with a category, for example Gmail proxy, privacy proxy (Apple Mail) or human, so you can tell a probable reader from a machine.
Unlike a read receipt, tracking asks nothing when the email is opened, but it needs the recipient’s consent recorded beforehand and it is not hidden: every tracked email ends with a notice and the link “Do not track my activity”. On the free plan, history is kept for 7 days and a short HawkOpen signature is added to your emails.
Where rules that require consent apply, tracking may start only after that consent has been obtained. The link in the message lets the recipient withdraw consent later.