Thank you for the suggestion. We had had this requests since the beginning, but the issue is that at $1/$2 per month, one chargeback cost us 7 to 15 customers at these plans to support just the implicated costs. That's why we never got lower than 9$.
Granted, we don't have chargebacks everyday, but we get some occasionals one that, at these price, would hurt way more.
Now, we still offer an alternative plan that is available only upon request (or on certain occasions). We call it the "Lite plan" at 30$ per year, where you have all the advantages of the premium plan, but without the SMTP sending part. If that interests you, just send a request to the support and we'll enable it for your account :=)
