Email Tracking Pixels: How to Block Them

Myth: Blocking images stops every kind of email tracking

What is actually true

Image blocking mainly reduces tracking based on remote image requests. It does not remove every signal from an email.

Links can contain recipient or campaign identifiers and redirect through a measurement service. A click may therefore be recorded even when every image remains blocked. Read receipts, delivery logs and activity on a website after you click are separate sources of information.

A sender may also receive delivery information from mail systems. That does not necessarily reveal that you personally read the message. It is a different event from a pixel-based open.

Why the myth exists

Images are the most visible privacy control in many email apps. Once images disappear, the message feels protected. That is helpful, but it can create a false sense that all tracking has stopped.

What to do instead

Use several small controls:

• Preview a link before clicking it.
• Be cautious with redirects and long URLs containing unique tokens.
• Visit a known website directly when an unexpected message asks for sensitive information.
• Keep read receipts opt-in or disabled if you do not need them.
• Do not reply to suspicious messages simply to ask whether they are genuine.
• Unsubscribe through a trusted route, or block the sender, when a newsletter is unwanted.

Terms such as utm_, click, redirect and campaign can be clues, but they are not proof of tracking. Some links use these labels for ordinary analytics, while some tracked links use less obvious formats. A link can also be legitimate and still record a click.

For a broader explanation of these methods, read how email tracking works.

1. 1Read the text without loading remote images.
2. 2Check the sender and destination before clicking.
3. 3Load images only if they add useful context.
4. 4Keep receipts and remote content manual for sensitive mail.

Myth: Disabling image loading makes newsletters unusable

What is actually true

Some newsletters depend heavily on images. Others remain useful because the text, headings and links are included in the message itself. Accessibility text, image descriptions and plain-text alternatives may also preserve the main information.

The experience will not always be perfect. A product grid may lose its photographs, and a branded header may become a blank space. That is a real trade-off, not a reason to give every sender automatic access.

Why the myth exists

Email design often assumes that images will load. When they do not, the result can look unfinished. Many people then turn image loading back on everywhere instead of making exceptions for the messages they value.

What to do instead

Use a two-step choice:

1. Read the available text and decide whether the message is worth loading.
2. If it is, allow the images for that message or sender, if your client offers that control.

For an expected travel booking, delivery update or event ticket, loading images may make the message easier to use. For a cold sales email, the images are rarely essential. If a newsletter is consistently poor without remote images, find the publisher’s web version or change your subscription preferences.

You can also reduce inbox clutter by using blocked senders and unsubscribe controls. Unsubscribing from unwanted mail is often more effective than repeatedly deciding whether to load its images.

Myth: Read receipts and spy pixels provide the same information

What is actually true

They can both produce information about message activity, but they work differently.

A read receipt is an explicit protocol or client action. Depending on the recipient’s settings, the email app may ask whether to send a notification. The recipient can decline it, and support varies between providers and apps.

A spy pixel works through a remote content request. If images load, the request can be logged without a visible receipt prompt. If images are blocked, that particular open signal may not be created. Neither method proves that the recipient understood the message.

Why the myth exists

Both features are often described as “knowing whether an email was opened”. That phrase focuses on the result and hides the difference between a requested confirmation and a background resource request.

What to do instead

As a recipient, make read receipts a deliberate choice. Decline them for messages where you do not want to confirm activity. As a sender, use them sparingly and never rely on them for consent, payment confirmation or other high-stakes decisions.

If you use a local-first email workflow, check which controls are active on each device. Settings can differ between a desktop app, a webmail account and a phone.

A practical privacy routine

You do not need to inspect every message like a security analyst. A simple routine covers most everyday cases.

Keep external images blocked by default. Read the sender, subject and text first. Treat a request for a password, payment or urgent action as a separate security question, not merely a tracking question.

Before clicking, preview the destination. If the message is unexpected, open the organisation’s website or app independently. Do not enter credentials after following a link from a message unless you have verified the destination carefully.

Load remote content when the benefit is clear. An expected booking confirmation may be worth the trade-off. A message from an unknown advertiser usually is not.

These controls improve privacy, but they do not make email anonymous. They also do not replace malware protection, account security or phishing awareness. For sensitive messages, use a trusted channel to verify unusual requests.

In Mailamber, remote images and tracking pixels are blocked by default, with a counter showing how many were stopped. That makes the choice visible: you can read first, then load content when it is useful rather than allowing every message to fetch images automatically.

FAQ

Can a sender know I opened an email?

Possibly. If the message contains a tracking pixel and your email client requests it, the sender may record an apparent open. Blocking remote images prevents most pixel-based open signals, but other forms of tracking can remain.

Are email tracking pixels dangerous?

Usually, a pixel is a privacy concern rather than malware. It can connect a message or recipient identifier with a request and may expose technical details available to the server. Do not click suspicious links, and keep remote content blocked when you do not trust the sender.

Can I block tracking pixels without blocking useful images?

Often, yes, by blocking remote images by default and allowing them selectively. A dedicated tracker-blocking feature may also identify blocked requests, but no tool can reliably classify every remote image perfectly.

Does an image proxy solve email tracking?

It can reduce what the sender sees directly, including in some cases your IP address, but it is not a complete solution. The proxy may still fetch unique image URLs, and it does not stop tracked links or read receipts.

Should I disable read receipts?

Disable them or set them to ask first if you do not need them. A read receipt is not the same as a tracking pixel, but it can still confirm message activity. Your choice should match the sensitivity of the conversation and the expectations of the people you email.

For a practical setup guide, see blocking email trackers and remote images.