The feature works both ways. If you want to avoid being tracked by others, Yahoo offers a strong defense.
: A desktop email client that links to your Yahoo account via IMAP, enabling link tracking and read receipts.
This technology operates on the fringes of visibility. By embedding a single, microscopic pixel into a message, senders gain the power of a silent observer. For a job seeker, seeing that an employer opened their resume five times provides a surge of hope; for a salesperson, it is the cue to strike while the iron is hot.
(Freemium, Web Extension)
(Paid, Web Extension)