From working on Purelymail (which does offer mail for ~$1 a month), I would say that it's feasible to run such a service and be profitable, but that the $5/mont

From working on Purelymail (which does offer mail for ~$1 a month), I would say that it's feasible to run such a service and be profitable, but that the $5/month services have a lot more leeway in marketing, hires, opportunity for huge profits, etc.