Not at all. Imagine a client being attracted to a company with "
123456@gmail.com" as their email... can you imagine it? Neither can I. Same goes for most of your emails you're selling.
It all depends on what business you are running.
I know that is last year post, but I completely agree with him. It's useless for a company to use your email as their business email because it makes them look very unprofessional. Good luck selling the emails, though.