In terms of personal email security for my banking and other services, should I use a custom domain like [example.com](https://example.com) that would have just one email address associated with it, [[email protected]](mailto:[email protected]). Or, is it more secure to use a service like @gmail.com?
I like custom domains, but seems like that could be a bad plan even though I have reasonably good security practices for my custom business domains. Better to blend in with a generic email domain and not stand out is part f my theory.
I’m leaning toward using a protonmail service account because of what I’ve read.
Opinions are apprectited.