Reliable delivery is table stakes for any email product, but complex systems are hard to maintain. We opted for a pragmatic stack that balances deliverability, observability, and cost.
Deliverability without the cruft
We rely on a hardened Postfix setup in front of AWS SES. Postfix gives us granular control over throttling, retries, and bounce handling while SES ensures solid sender reputation. The combination keeps our operations lean.
Observability built in
Metrics stream into an open-source pipeline built on VictoriaMetrics. We track delivery latencies, bounce rates, and per-campaign health so we can spot issues before your readers do.
Fast iterating
Running a small, well-instrumented stack lets us ship improvements quickly. When we experiment with batching strategies or rewrite sections of the API, the feedback loop is minutes instead of days.
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