SirHumphreyAppleby:
networkn:
This is a relatively new thing, and we have already requested all the domain keys from them and will move to another provider.
I'd create new entries using your own keys. If you need to validate old e-mail for a period of time, just copy the public key records.
Might be a good opportunity to deploy ed25519-sha256 signing as well.
That's not how key works. You need the private key to validate/decrypt anything that is encrypted with a public key. And private keys aren't published, shouldn't be published.



