Is YAMM Tracking Your Email? How to Block It

Key Takeaways

• YAMM embeds an invisible single pixel tracking image in each message it sends, so opens are recorded without any notice to you.
• Opening a YAMM email updates the sender's Google Sheet in real time with open counts, click activity, replies, and bounces per recipient.
• Because YAMM sends from a real Gmail address, its emails land in primary inboxes and look individually written, which YAMM markets as open rates up to 20x higher than bulk platforms.
• Gblock's auto updating blocklist covers YAMM's tracking infrastructure and blocks the pixel before it fires, so the sender's spreadsheet never logs your open.

What Is YAMM?

YAMM, short for Yet Another Mail Merge, is a Google Workspace add on that works inside Gmail and Google Sheets. A sender loads a list of recipients into a spreadsheet, drafts one email in Gmail, and YAMM sends a personalized copy to everyone on the list, directly from their own Gmail account. It is widely used by schools, nonprofits, teachers, and small businesses who want newsletter reach without a dedicated marketing platform.

Because the messages come from a real Gmail address rather than a bulk mail server, they bypass many spam filters and land in primary inboxes. YAMM markets this as delivering open rates up to 20x higher than tools like Mailchimp or HubSpot. The same setup that makes the email look personal is also what makes its tracking hard to notice.

Does YAMM Track Email Opens?

Yes. By default, YAMM embeds a tiny invisible tracking image, a single pixel gif sometimes called a web beacon, inside the content of every message. YAMM describes the mechanism in its own support documentation: when the recipient opens the message, the tracking image is scanned, referenced, and recorded in its system. That recorded event is what turns into an open on the sender's dashboard.

The pixel is invisible to you, and YAMM gives recipients no opt out and no notification. The sender simply sees your row in their spreadsheet update from unopened to opened, along with a count if you come back to read the message again.

What Data Does YAMM Collect When You Open an Email?

YAMM writes tracking data straight back into the sender's Google Sheet, updating it in real time. Per recipient, the spreadsheet auto populates open status and open counts, link clicks, replies, and bounces. The sender ends up with a live scoreboard showing exactly who engaged and who ignored the message.

Like most pixel based trackers, the request that loads the beacon can also expose your IP address, which can be used to infer your general location. In Gmail this is partly limited because Google routes images through its own proxy, but the open event itself still registers. For a full picture of what senders can see, read our guide on what your email metadata reveals.

How Accurate Is YAMM's Tracking?

Open tracking based on web beacons is an estimate, not a precise count, and YAMM acknowledges as much. If images are blocked or never loaded, the pixel never fires and the open goes unrecorded, so YAMM under reports in those cases. The reverse is also true, and automated scanning can register opens that no human ever made.

Two things distort YAMM's numbers heavily for Gmail readers. Gmail's image proxy on googleusercontent servers can fetch the pixel itself, masking your real IP and sometimes registering an open at proxy fetch time rather than when you actually read. Apple Mail Privacy Protection goes further, preloading all images from Apple servers whether or not you open the message, which can flag every email as opened and strip the timing data entirely. If you want to understand why opens and clicks tell senders different things, see email open tracking vs click tracking explained.

How to Tell If an Email Was Sent via YAMM

YAMM emails are hard to spot at a glance because they arrive from a real Gmail address and read like a message written just for you. You can still inspect the source: in Gmail, open the three dot menu and choose "Show original," then search the raw HTML for a small one pixel image URL, often a web beacon pointing at a YAMM tracking domain. A campaign sent to a large recipient list, personalized with your first name in the greeting, is another common tell.

For a systematic way to spot trackers across all your email, see how to tell if your email is being tracked.

How to Block YAMM Tracking in Gmail

There are a few approaches, with different tradeoffs:

• Gblock (most effective): Gblock is a Chrome extension that blocks tracking pixels before they load in Gmail, including YAMM's web beacon. Its blocklist updates automatically, covering new tracking domains as they appear. Because the block happens before any request reaches YAMM's servers, the sender's spreadsheet never logs an open. Tracked links are stripped too.
• Disable remote images in Gmail: In Gmail Settings, under General, then Images, choose "Ask before displaying external images." This stops tracking pixels from auto loading, but it also breaks legitimate images and requires a manual step every time you open a message.
• Apple Mail with Mail Privacy Protection: Apple Mail preloads all email images through Apple's proxy servers, masking your real open time and IP. This distorts YAMM's data, but it only works if you read email in Apple Mail rather than Gmail in a browser.
• Do not click links in the email: No tool hides a click if you actually click. To avoid click tracking, do not click, or copy the destination URL from the source and paste it directly into your browser.

For a full comparison of every blocking option including Ugly Email, PixelBlock, and Trocker, see how to block email tracking in Gmail.

Does Gblock Block YAMM's Tracking Pixel?

Yes. Gblock maintains a continuously updated blocklist that covers the tracking infrastructure used by mail merge tools including YAMM. When a YAMM email arrives in your Gmail, Gblock intercepts the pixel request before it fires, so the open never registers on the sender's Google Sheet. It also strips tracked links so click events are not logged either.

Unlike browser level image blocking, Gblock works without disrupting the images a sender legitimately included, and it stays inside Gmail rather than forcing you to switch apps. You still see the photos and graphics in a newsletter, only the invisible surveillance pixel is stopped. Mail merge is a normal way to send announcements, but you have every right to read your email without your behavior being logged and scored. If you want to compare dedicated tools, see our roundup of the best email tracker blockers for Gmail.

Sources: YAMM on open tracking, YAMM on tracking accuracy, YAMM homepage.