Is a $40 one-time fee sustainable? Newton Mail had a $50 annual subscription fee, and it recently had to shut down. Does anyone know if Postbox monetizes your e

Is a $40 one-time fee sustainable? Newton Mail had a $50 annual subscription fee, and it recently had to shut down. Does anyone know if Postbox monetizes your email data (like Edison mail)? I'm seeing the following in their privacy policy: "As part of this use of information, we may provide aggregate or anonymous information to our partners about how our customers, collectively, use our Services. We share this type of data so that our partners also understand how often people use the Services, so that they, too, may provide you with an optimal online experience. Again, Company never discloses aggregate or anonymous information to a partner in a manner that would identify you personally."