If you are a Yahoo Mail user who relies on Mailtrack to monitor email opens and link clicks, you may have recently experienced service interruptions, missing icons, or the inability to send tracked emails.
Go to chrome://extensions , toggle Developer Mode on, and click Update . mailtrack for yahoo fixed
Using Mailtrack for email tracking in Outlook and other clients If you are a Yahoo Mail user who
Yahoo Business accounts use a different mail infrastructure (Yahoo’s enterprise stack) which strips all external pixels by default. toggle Developer Mode on