After 100 users, email becomes core SaaS infrastructure
A simple email setup that works for the first 100 users can start to fail as a web product grows. At that point, email is no longer just a small add-on; it becomes for running the service. The useful setup sends messages from , such as sign-ups, payments, or account actions.
It also keeps separate from , because account and payment messages must be more reliable than or promotions. Pricing based on sends, rather than stored contacts, can be safer for a small business because growth in the user list does not automatically raise costs as much.
Key points
- A free or improvised email setup may be enough for the first 100 users but not much beyond that.
- Email should be treated as once it handles account, payment, and product messages.
- let the service send the right email after a user takes a specific action.
- should be kept separate from .
- Pricing based on sends can be easier to control than pricing based on contact count.