I own a domain.
I set up DKIM (and SPF) I had some "feedback" about my keys, so I went to check these at easydmarc.com ...one of these failed because it was not RSA (it used ed25519 ...which I gather is "better") it seems many providers do not (yet) support ed25519. But a note in reddit says "protonemail" is one of the few that does ... So I'd like to use a feature similar to https://easydmarc.com/tools/dkim-lookup ... but obviously with the more modern support (as protonemail uses today)