If it can differentiate itself by being private and secure, sure. That means non-US hosting, zero knowledge storage, PFS on all SSL/TLS, properly defined securi

If it can differentiate itself by being private and secure, sure. That means non-US hosting, zero knowledge storage, PFS on all SSL/TLS, properly defined security policies from a company side to reduce social engineering, secure architecture, etc. Many people on HN probably either host their own email or considered it, but a good secure service is better to sell to people without that technical knowledge who don't want to be a Google/MS/Apple/Yahoo/etc product. I've pointed less technical people towards MyKolab before; they are a good model for how an email service should be done.