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About the developer

apparition47
987 Stars 23 Forks BSD 3-Clause "New" or "Revised" License 239 Commits 10 Opened issues

Description

Email tracker, read receipt and spy pixel blocker plugin for macOS Apple Mail

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MailTrackerBlocker Awesome Humane Tech

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 labels who is tracking you and strips out spy pixels out of the HTML before display, rendering the typical advice of disabling "load remote content in messages" unnecessary.

Browse your inbox privately with images displayed once again.

Be informed. Say No To Spy Pixels.


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Prerequisites

Apple Mail on macOS 10.11 - 11.x.

(macOS 12 and newer users should enable the built-in Mail Privacy Protection instead!)

Setup

Installation

You can install

MailTrackerBlocker.pkg
directly from the releases page or via Homebrew Cask:
$ brew install mailtrackerblocker

Usage

  1. [Additional step for macOS 10.14, 10.15 only] Open Mail, goto
    Preferences > General > Manage Plug-ins... > check "MailTrackerBlocker.mailbundle" > Apply and Restart Mail
    . Note that you'll need to do this again for each update.
  2. Tap on the
    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.

To uninstall

If you installed with Homebrew:

$ brew uninstall mailtrackerblocker

If you installed the

pkg
manually:
osascript -e "quit app \"Mail\""
# plugin files
sudo rm -r /Library/Mail/Bundles/MailTrackerBlocker.mailbundle
sudo rm -r /Library/Application\ Support/com.onefatgiraffe/mailtrackerblocker
sudo pkgutil --forget com.onefatgiraffe.mailtrackerblocker
# user-generated settings
rm -r ~/Library/Containers/com.apple.mail/Data/Library/Application\ Support/com.onefatgiraffe.mailtrackerblocker
defaults delete com.apple.mail _mtb_IsAutoUpdateCheckAllowed
defaults delete com.apple.mail _mtb_IsFirstStartup
defaults delete com.apple.mail _mtb_LastUpdateCheckDate

FAQ

Why am I getting a "Incompatible Plug-ins Disabled" message after enabling?

Typically caused by Mac migration or restoration from backup. Delete Mail's private plugin-ins dir (or DataVaults) to fix this issue. This dir will automatically be regenerated afterwards.

Building from source

Building will automatically install a copy into your

/Library/Mail/Bundles/
dir so if you have a current installation from the public pkg installer, you'll need to remove it due to permissions:
$ rm -rf /Library/Bundles/MailTrackerBlocker.mailbundle
.
git clone https://github.com/apparition47/MailTrackerBlocker.git --recursive

A. Make

You'll need to edit

Makefile
and specify your own
Developer ID Application
(used to sign the plugin binary [for macOS 11 and up]) and
Developer ID Installer
(used to sign the pkg) certificates.
cd MailTrackerBlocker

build-only

make

build, sign binary and make pkg

make all

B. Xcode

  1. Give Xcode
    Full Disk Access
    from
    System Preferences > Security & Privacy > Privacy > Full Disk Access
    and add Xcode.
    • Required because the mailbundle needs to be installed into
      /Library/Mail/Bundles
      .
  2. Open the Xcode project.
  3. Change the Signing settings in
    Signing & Capabilities
    (macOS 11 and up: you'll need to use your own
    Developer ID Application
    certificate; below macOS 11: set it to none/don't sign) then hit build.
    • mac OS 11 and up: allow
      Finder
      access to allow Xcode to copy unsigned directly into sandboxed env

Credits

License

BSD-3.

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