> or spend engineering time (salary money) to build it once and pay almost nothing to keep it online Every time an engineer says this, somewhere a puppy dies.

> or spend engineering time (salary money) to build it once and pay almost nothing to keep it online Every time an engineer says this, somewhere a puppy dies. Especially with an email service, keeping up with the spammers, scammers, blacklists, AV false positives, delivery failures at large companies, etc. cost far more per year than building the thing. Operations is never free.