Is Vtiger Email Tracking You? How to Find and Block It

An email from a sales rep lands in your inbox. It looks plain. Somewhere in the HTML sits an image one pixel wide, and the moment your mail client fetches it a row lands in a database, stamped with the date and time, next to your name. That is Vtiger email tracking. Unlike almost every tracker you can name, it does not phone home to the vendor. It phones home to whoever sent the message.

Vtiger is a customer relationship manager sold in two shapes: a hosted cloud product, and an open source edition companies run on their own servers. That second shape makes it unusual. What follows comes from the code, not the marketing copy.

Key Takeaways

• Vtiger's open source file modules/Emails/mailsend.php inserts the tracker with the line $description = "<img src='$track_URL' alt='' width='1' height='1'>$description";.
• That pixel URL is assembled from $site_URL, the sender's own Vtiger address, so a self hosted install puts no vendor domain in the message for a blocklist to match.
• The endpoint modules/Emails/TrackAccess.php writes one row per open into vtiger_email_access, storing accessdate and accesstime, so the CRM holds a timestamped log rather than a counter.
• The pixel's record parameter carries your own CRM record id, which identifies you personally rather than identifying the campaign.
• Vtiger campaign reports show Sent, Opens, Clicks, Bounces, Unsubscribes, Complaints and Unopened, and open history feeds the CRM's Engagement Score.

What Is Vtiger Email Tracking?

Vtiger email tracking is the CRM's built in ability to record when a recipient opens a message and which links they clicked, then file it against their contact. Vtiger sells email marketing and campaigns as a core feature, alongside a Gmail add on and an Outlook plugin that pull the same data from a rep's mailbox.

Two mechanisms do the work. An invisible image reports the open, rewritten links report the clicks. Vtiger's documentation on tracking recipient activity on email campaigns says the results appear "under the Activity section of a contact's Summary View," where a rep sees "when the contact opened your email, clicked on a link in your email."

What Does Vtiger Actually Record About You?

It records that you personally opened the message, the date and time of each separate open, and every link you clicked. The open handler is one short file, modules/Emails/TrackAccess.php, and the source is plain. Each request inserts into vtiger_email_access four values, crmid, mailid, accessdate and accesstime, then counts the rows and updates access_count in vtiger_email_track.

That is the detail most coverage of CRM tracking misses. The number shown in the interface is an access count, which sounds like a tally. Underneath it the database keeps one dated and timed row per open. Twelve opens are not stored as the number twelve. They are stored as twelve moments, and anyone who queries that table gets a reading pattern: which mornings you check mail, how long after a send you get to it, whether you came back to the quote three times on a Sunday evening.

Campaign reporting is more conventional. Vtiger's guide to email campaign metrics lists Sent, Opens as the "number of unique opens," Clicks as the "number of click actions (on any link) in the email," plus Bounces, Unsubscribes, Complaints and Unopened. The same signals feed downstream: Vtiger's Engagement Score is "a quantifiable value that lets you know the level of interaction of customers," calculated partly from "Emails open and Email clicks versus the historical pattern."

The honest limits: the pixel cannot read the message, see your other mail or follow you around the web. It is all inferred from the bare fact that a request arrived, from which address, at what second. Still enough to place you in a city and name your device, because every HTTP request carries an IP address and a user agent regardless.

How Do You Know If a Vtiger Email Is Tracking You?

Open the raw message and look for a one pixel image whose address contains /modules/Emails/TrackAccess.php. In Gmail on the desktop, click the three dot menu at the top right of the message, choose Show original, then search the source for TrackAccess, width='1', or simply <img.

You are looking for the tag generated in modules/Emails/mailsend.php, directly under a comment reading "Email Open Tracking":

• $track_URL = "$site_URL/modules/Emails/TrackAccess.php?record=$mycrmid&mailid=$emailid&app_key=$application_unique_key";
• $description = "<img src='$track_URL' alt='' width='1' height='1'>$description";

Three parameters ride along. record is the CRM's internal id for you, which is why an open attaches to a person, not a campaign. mailid identifies the message. app_key is the sending instance's secret, checked before anything is written.

The hosted cloud edition does not publish its source, so we could not verify a fixed tracking hostname for Vtiger Cloud, and we will not invent one. There is no single Vtiger domain to block. Find the pixel in the message you actually received, using the same inspection our walkthrough on detecting tracking pixels in Gmail applies to trackers that do not announce themselves.

Why Is Self Hosted Vtiger Harder to Block?

Because $site_URL is whatever the company typed into its own configuration, the tracking host is the sender's website and no vendor name appears anywhere in the request. If a supplier runs Vtiger at crm.thatsupplier.example, your open is reported to crm.thatsupplier.example. Nothing in that hostname says tracker. Nothing in it appears on any list. A Mailchimp pixel loads from a Mailchimp server; this one does not.

That inverts the usual advice. When we took apart Zoho CRM's email tracking, there was a vendor controlled host to point at, as with every internal communications tracker we have examined. Blocking those is a naming problem, and naming problems have list shaped solutions. Vtiger is not a naming problem. Every self hosted instance mints its own tracking domain, so the set of hostnames to block is roughly the set of companies running Vtiger, which nobody can enumerate.

Some CRMs straddle both regimes. Bitrix24 tracks email opens with a 1x1 pixel like everyone else, but sells a cloud edition, a custom domain option and a self hosted one, so the same product lands on a listable vendor host or an uncatalogued first party host depending on what the sender pays.

What generalises is the shape. The path /modules/Emails/TrackAccess.php is identical on every install because it ships in the source rather than being configured, and the image is always one by one with an empty alt. Those signatures survive any hostname, but most blocking tools check the domain first, which is exactly the field Vtiger leaves blank.

A note for compliance readers: on a self hosted install the open log never leaves the sender's infrastructure, so there is no processor to name and no transfer to assess. On paper that reads as an improvement. From your side it is the reverse, because the data is just as personal and the scrutiny a named third party attracts is gone.

How Do You Block Vtiger Email Tracking?

Stop your mail client fetching remote images. That setting is domain agnostic, the only defence that works whoever's server the pixel sits on. Everything else refines it.

• Gmail on the desktop. Settings, See all settings, then under Images choose Ask before displaying external images and save, per Google's guide to turning images on or off in Gmail. Gmail's default is not this: it proxies images through its own servers, which hides your IP address but still fetches the pixel, so the open still lands.
• Apple Mail. Mail Privacy Protection does not help here. It fetches remote content on arrival rather than when you read, handing the sender an open you never made. We covered why that produces fake email opens.
• Links are a separate problem. No image setting touches a rewritten link. If the sender routes clicks through a redirect, clicking still reports the click, the time and your identity.

Which Blocker Actually Handles This?

Named honestly, with the self hosted case as the deciding column. Our roundup of email tracker Chrome extensions goes further on each of these.

Where Gblock fits, without inflation. It blocks tracking pixels from loading and strips tracking redirects out of links before you click, and its blocklist updates on its own rather than waiting for a release, which matters for the long tail of CRM trackers that do use fixed domains. It runs inside Gmail, so your address and provider stay put. What it cannot do is list a hostname nobody has seen, so for a supplier running its own Vtiger box, pair it with the boring step above. Our full guide to blocking email tracking in Gmail walks the settings in order.

What This Means for Your Inbox

Most writing about email tracking concerns marketing lists, where the sender is a brand and the volume enormous. A CRM tracker is a different animal. The sender knows your name, the message is one to one, and the log attaches to your file. Nobody is testing a subject line on you. Someone is watching whether you opened the proposal.

The scale question is settled. Englehardt, Han and Narayanan's Princeton study, I never signed up for this!, examined more than 12,000 emails from roughly 900 senders and found 85 percent carried embedded third party content, 70 percent of it classed as trackers by protection lists. Vtiger slips past those lists entirely, because there is no third party.

The pattern generalises past this one product. Any open source CRM installed on a company's own hardware yields the same thing: an ordinary looking image request from an ordinary looking domain, carrying a personal identifier. SuiteCRM and EspoCRM share the design. So work in this order:

1. Set Gmail to Ask before displaying external images. The only step that holds when the pixel sits on an uncatalogued domain.
2. Check a suspect message with Show original, searching for TrackAccess.php or width='1'.
3. Add a blocker for the pixels and the rewritten links, since no image setting touches a redirect.
4. Treat every blocklist, ours included, as the layer on top, never the floor.

Sources: Vtiger CRM source, modules/Emails/mailsend.php; Vtiger CRM source, modules/Emails/TrackAccess.php; Vtiger: How do I track the recipients' activities on Email Campaigns; Vtiger: How do I view the metrics of my email campaigns; Vtiger: What is Engagement Score; Vtiger: Email Marketing; Princeton CITP: I never signed up for this!; Google: Turn images on or off in Gmail. Source code was read on 31 August 2026 against the published open source repository; the hosted Vtiger Cloud edition is closed and its tracking hostnames could not be verified.