Industry data suggested only 12% of Yahoo Mail users ever knowingly consented to tracking, compared to 41% on Gmail. Yet, open rates for marketing emails on Yahoo were 18% higher than Gmail – because Yahoo auto-loaded images by default.
A: Usually, no. But if they use advanced email security (like ProtonMail or a custom firewall), they may see the "image proxy" warning. The free Hunter plan adds a visible signature line, so they will know. mailtrack for yahoo mail 2021