Neto on Nostr: nprofile1q…jg4yp What is the reason that Delta Chat requires the Certify private ...

nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqzgymqfyt0t0wm3ws2qvcp9vxtau4pzlftmr8h6qdjg6608wpjs2skjg4yp (nprofile…g4yp)

What is the reason that Delta Chat requires the Certify private key to import?

I have autocrypt with thunderbird/k9 mail without the certify privkey and it works perfectly.