Trocker for Chrome

Trocker for Chrome is a Chrome add-on that helps you block any email tracking attempts, and supports Gmail, Yahoo Mail, and Outlook.

The Trocker extension blocks email trackers' attempts to find out what you're doing with the emails you receive.

Trocker protects you across all web emails, including Gmail, Yahoo! and Outlook.com. It has additional features in Gmail, Inbox and Outlook.com. In these 3 web emails, it has heuristic tracking detection that detects and blocks almost any attempt to track emails, even from unknown trackers!