onionmail.org — I thought it was a great option, but acct was spontaneously deleted

The onionmail.org service is one of a kind. Although there are a few liberated email services that offer onion accounts or onion access to clearnet addressed inboxes, onionmail.org is the only one that will give you an onion email address which has no clearnet alias.

This is very useful because it’s an email address that you can distribute as an email address, but Microsoft and Google users have no hope of sending you messages. It’s an escape from ad surveillance but while still giving the other person a feasible means to reach you through a better email provider.

The problem is that they falsely advertise the account limitations. You distribute your onion email address to people, then a few months later they cut you off.

Question: is onionmail.org really one of a kind? Is there anything else gives you an onion email address with no clearnet alias?