# Switch to Protonmail Reason #9: Stop advertisers from learning the exact time you read an email through known pixels

The moment you open a message can become another behavioral signal for automated targeting.

2026-09-05
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Switchboard Tech Services


![Switch to Protonmail Reason #9: Stop advertisers from learning the exact time you read an email through known pixels](https://switchboardtechservices.com/static/images/defaults/guides.webp)

## Why this matters

The moment you open a message can become another behavioral signal for automated targeting. Privacy is easier to defend before this information is collected than after it has spread.

## The protection

Proton removes known tracking pixels before they can report your open time.

## Take action

Keep protection enabled rather than trusting every newsletter. This does not stop a sender from observing a later purchase or site visit. Email protection depends on the route and settings. Ordinary mail involving outside providers is not automatically end-to-end encrypted, and email metadata is not universally hidden.

## Sources

[Proton email tracker protection](https://proton.me/support/email-tracker-protection).

- Categories:
  [Proton Mail](https://switchboardtechservices.com/guides/categories/proton-mail/)
- Tags:
  [#Digital Self-Defense](https://switchboardtechservices.com/guides/tags/digital-self-defense/), [#Proton Mail](https://switchboardtechservices.com/guides/tags/proton-mail/), [#Email Privacy](https://switchboardtechservices.com/guides/tags/email-privacy/), [#Email Tracking](https://switchboardtechservices.com/guides/tags/email-tracking/)

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Canonical URL: https://switchboardtechservices.com/guides/switch-to-protonmail-reason-9/

Language: en-us

Content type: guide

Author: Switchboard Tech Services

Published: 2026-09-05T12:22:35+00:00

Description: Why stop advertisers from learning the exact time you read an email through known pixels matters for privacy and security.