It's just fastmail.com, that would be insane to blacklist. Also you don't really use these for sending, it's more for signing up for things and online shopping.
iCloud’s HideMyEmail service generates @icloud.com addresses. Very easy, single click.
Nevertheless, I still use my personal name at lastname dot com for everything for decades and amount of spam is quite tolerable. Rarely it leaks into inbox. It’s even published on my personal web site in plain text.