An email tracker, read receipt and spy pixel blocker plugin for macOS Apple Mail.
MailTrackerBlocker is a plugin (mailbundle) for the default Mail app built-in to macOS. Email marketers and other interests often embed these trackers in HTML emails so they can track how often, when and where you open your emails. This plugin works by stripping out a good majority of these spy pixels out of the HTML before display, rendering the typical advice of disabling "load remote content in messages" unnecessary.
MailTrackerBlocker makes it possible to browse your inbox privately with images displayed once again.
Apple Mail on macOS 10.11 - 11.x.
You can install
MailTrackerBlocker.pkgdirectly from the releases page but I strongly recommend installing as an Homebrew Cask for ease of updating.
$ brew install apparition47/tap/mailtrackerblocker
Preferences > General > Manage Plug-ins... > check "MailTrackerBlocker.mailbundle" > Apply and Restart Mail.
ⓧbutton to find out what was blocked.
⚠️ Disabling "load remote content in messages" with MailTrackerBlocker enabled is redundant; re-enable this option for the best experience.
$ brew uninstall mailtrackerblocker
Or if you installed manually, quit Mail then delete
git clone https://github.com/apparition47/MailTrackerBlocker.git cd MailTrackerBlocker make
Full Disk Accessfrom
System Preferences > Security & Privacy > Privacy > Full Disk Accessand add Xcode.