Is there a mail service with easy registration without a phone number?

Question

Email

Is there a mail service in nature that is not blocked by large companies with easy registration without a mobile number, etc.? It is even better if there is some kind of api for these cases, preferably without obtrusive captcha.
I know that, for example, there is cock.li, but many do not send mail to it, plus registration is not the most convenient there, even without a mobile number. There is a wonderful maildrop.cc but it's still in a different direction.
As an extreme option, I consider my server. Thanks for the suggested options.

Answer 1

I tell you: there is a service that is based on anonymity and does NOT require a phone number for confirmation! You can create an infinite number of boxes for your cases and from there letters are guaranteed to fall into the inbox. I even wrote instructions with pictures:
https://telegra.ph/Kak-sozdat-pochtu-bez-telefona-07-30

Answer 2

Of course, all services where this is easy have long been chosen by spammers. So you have to raise your server.

Answer 3

No. Because spam always rushes from him.