[huac]

How are they going to make money from that?

[shmerl]

Charge a monthly / yearly fee?

[huac]

if you are willing to pay for private email, why not any of the dozens of existing ones? e.g. protonmail or fast mail? there is little differentiation available for them here.

[craftyguy]

The same way that other legitimate email service providers do: they charge a monthly or yearly fee for service.

[RaceWon]

I think someone from say MailChimp would be more qualified to answer this question than I would... :)

[willio58]

They make money from sending emails to lists. Very different business model to Gmail or the like.