When attempting to use a recovery email, the domain that I use does not have an A record (but has valid mx records) but gets rejected with the following error:
Content: ‘{“type”:“urn:acme:error:malformed”,“detail”:“Error creating new registration :: Validation of contact mailto:valid@email.xyz failed: Server failure at resolver”,“status”:400}’
I don’t believe an A record should be required on the email domain, better to validate mx records only.