I long made a "spam/unimportant site verification " account, so that's set.
I long made a "spam/unimportant site verification " account, so that's set.
Proton is another one people often suggest. Hey.com sometimes too. No experience with those myself.
There are other options (such as the big guys, iCloud mail or Outlook.com), but aside from self-hosting (which I don't want to spend time maintaining just for my personal mail), I personally haven't seen much outside of those ones that are recommended often.
But as long as you get SSL/DKIM/SPF and the other stuff right, and it's not THAT difficult, then most hosters will let you through. Unless it's German Telecom, because for some reason t-online.de decided to only allow emails from hosters they whitelisted and there's a whole approval process which even requires registering with them with an email that is NOT from your domain and even a fax, but honestly fuck anyone using that domain.