Doesn't work on some sites but it is a great security and anonymity feature

Only 5 free emails instead of unlimited, no main mask email and its slower, all that in distinction with duckduckgo, but it is integrated with multi account containers, so I am using duckduckgo for main email and that for others.

0x46B954C9D0d5f9D17C8Ab6FaB1AD1FEa2a41f4a4