Isn’t that the gist of selfhosting?

Yes you can do it, yes you can have it done for you by somebody else. The first is fun, and risky, the second is less fun and less risky. We are all here for the fun… and probably we all don’t care too much of the risks. But why shut down everybody who ask about email selfhosting with a don’t do it? Let them try, make errors and fix them, maybe they learn something new, maybe it works out for them

What is the worst that might come out of it? Some spam? A blacklist? Come on, you can survive both. Don’t use your primary email account as self hosted from the beginning maybe, to mitigate all those risks, no?