It seems that if you use Tor you can forget to use emails on Internet.
Example with Tutanota, after a few days/weeks they remove your account, no explanation, despite not having sent emails...
Proton may decide to do the same, and it's usually the most approved service but not for me anyway.
So, what are the other services that can be used over Tor and that are not blocked by other major email providers when you send the email?