Sure, that's just config work that might not be straightforward. I personally undertake that kind of config work, but I can understand that others don't want to.
So I was thinking perhaps a subdomain would be a good way to divide it such that you could use @foo.example.com for accounts, but then host your main @example.com with some professional provider. Especially if that commercial provider wants to charge you per-address etc, and you can do catchall aliasing on the subdomain to tag email by sender. I like seeing who's sold/leaked my address this way.
