Send your first tracked email.
Compose in Gmail like you always do — tracking is added on Send, with a per-email toggle.
There's nothing new to learn: write your email in Gmail and hit Send. With the extension on, an invisible tracking pixel is added at the moment you send — never a footer, never any visible branding.
Open a new compose window in Gmail. Notice the Tracking on pill near the Send button.
Click the pill to turn tracking off for just this one message — for example a sensitive personal note. Your default lives in Settings.
Hit Send. The email appears in your dashboard instantly with grey ✓✓ — sent, not opened yet.
The moment your recipient opens it, the ticks go green in Gmail and the open appears in your dashboard timeline in real time.
Replies and forwards are tracked too — each message in a thread gets its own status, so a fresh unopened reply shows grey even if the original was opened.