It may be because the basic account is so much cheaper (€1/mo) that they offset it with higher prices for additional storage. Just out of genuine curiosity, why would anyone need that much storage for e-mail?
But if most people would use the lower end, wouldn't that make it less sustainable as a company that also states they very sustainable? (which I'm very happy for and support of course) I'm not an expert in business economics tho :p
I believe you'd see high usage if you use attachments a lot.
But if they set the same prices as other popular options like proton and tuta, they will simply lose a lot of customers who could have been someone ready to pay the extra fees. It certainly Isn't all black and white but a more delicate balance.
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