Many different domains. For example, both my wife and I have professional/consulting/personal consulting sites and we both do artsy stuff as a side hobby and b

Many different domains. For example, both my wife and I have professional/consulting/personal consulting sites and we both do artsy stuff as a side hobby and business so that's two separate domains eachs. Each one has 1-2 emails tops. I have a couple of domains that I use for recon and testing. I can have a ton of addresses there. My friends and I are trying out two side ventures, and there's about 10 addresses, but still two additional domains.