https://www.reviewgeek.com/92626/duckduckgos-new-service-anonymizes-your-email-address/
"These messages will be stripped of all trackers before they're forwarded to you. And because you're only giving websites, stores, and newsletters your @duck.com address, they will never know your primary email address."
Basically a forward with any tracking detail removed. Interesting.
>Interesting.
Particularly since Verizon has killed using Yahoo mail as a throwaway by nuking free forwarding.