Everyday use
How to track emails you send
People search “how to know if someone read your message.” No image-based email tracking tool can prove a named person read the mail, and a blue circle is not a message-read event. You can still use tracking emails as a follow-up cue when you want a message read signal rather than a CRM.
When tracking emails helps
A signal is most useful when one conversation matters and you would otherwise guess a follow-up time. Typical cases: a proposal or quote where timing matters; sales email tracking for one conversation, not a campaign builder; job applications and client follow-ups you send yourself.
It is a weak fit when you blast a list, when you need multi-seat reporting, or when you must prove that a specific person opened the file. For those jobs, email tracking software in a CRM or a native Workspace receipt is a different product class.
History limits on this browser
Local history keeps up to 500 tracked sends for 90 days, plus up to 100 active reminders. Rows with a live reminder are not silently dropped. This is enough for personal follow-ups and a poor substitute for a CRM archive. Search, filters, and follow-up / done labels stay in the same local store. Clearing the extension or using Delete tracking data wipes what you can see.
What to do in practice
- Install the Chrome plugin and pin it. Guide: Get started.
- Enable detection, send the message, wait until Gmail Undo is gone.
- If you see an activity signal, decide whether to follow up. If you see waiting, do not assume the mail was ignored — images may be blocked.
- Use History for reminders on this browser (up to 100 active, 90 days ahead).
How third party email tracking differs from “just follow up”
Email tracking programs and third party email tracking tools often sit in a CRM: they sync the mailbox, store opens in the cloud, and sometimes add a branded footer. SentCue’s email tracking software of this kind is a small image in supported outgoing mail. This Chrome plugin stays in Gmail. History never leaves the install in this version.
Proxies and scanners can load the image. A blue circle means that an activity signal was detected. It does not guarantee that the recipient read the message.
What “message read” language gets wrong
Marketing pages still say “know when they read it.” That overclaim is why privacy blogs tell people to block pixels. A request for a 1×1 gif can come from Google Image Proxy while the person is in another tab, from a gateway that screens attachments, or from you opening Sent. SentCue’s copy stays on activity signals on purpose: the product should be quotable without lying.
If you need to know whether a file was downloaded, whether a link was clicked, or which person on a shared inbox acted, this extension will not tell you. Those are other products, usually with more data leaving the mailbox.
A simple follow-up loop (no CRM)
Write the mail you would write anyway. Track it only if a cue would change when you nudge. After Send, wait out Undo. If a signal appears, you still decide the next sentence — “checking in” because a circle turned blue is not a strategy. If nothing appears, follow up on the date you would have picked without a tracker. History reminders exist so that date is on this browser, not in a salesperson’s sequence tool.
When not to wait on the circle
If the topic is time-sensitive, send the follow-up on your calendar anyway. A quiet circle can mean blocked images, a preview pane, or a person who read the text without loading remote content. Treat the signal as optional context, not a gate. A blue circle means that an activity signal was detected. It does not guarantee that the recipient read the message.