Yes there is a way of knowing what is the correct price and it is the one that maximises your NPV. The fact that many times companies charge too little does not change the fact that there is an optimal price. It is not found by just increasing your prices. You need to treat pricing like the hard problem it is.
I tend to think the mantra of charging more has gotten a little too popular and I suspect that many companies are now charging too much.
The big customers like Airbnb and Uber very much care how much it costs to send emails. The most price sensitive customers are the largest and they will try to screw you down on price much harder than smaller customers. When you are sending a billion emails the price per email is much more important than if you are sending a hundred.
Taking your example, there is no reason to think that charging less would result in more spammers using your service provided that you maintained equivalent quality controls. Spammers are probably the least price sensitive mass email customers as they are professionals who are most concerned about deliverability and ROI.
I tend to think the mantra of charging more has gotten a little too popular and I suspect that many companies are now charging too much.
The big customers like Airbnb and Uber very much care how much it costs to send emails. The most price sensitive customers are the largest and they will try to screw you down on price much harder than smaller customers. When you are sending a billion emails the price per email is much more important than if you are sending a hundred.
Taking your example, there is no reason to think that charging less would result in more spammers using your service provided that you maintained equivalent quality controls. Spammers are probably the least price sensitive mass email customers as they are professionals who are most concerned about deliverability and ROI.