This is for people who must use a browser and want a free Mailtrack extension.
If you use the on your phone but have your Yahoo account linked to it (via Gmailify), you can sometimes use the Mailsuite for Mobile add-on to track outgoing messages, though this is primarily optimized for Gmail addresses. Top Email Trackers Compatible with Yahoo mailtrack for yahoo
: You link your Yahoo account to a Gmail account using Google's Gmailify feature. Setup : This is for people who must use a