AWS SES vs Email API: When to Use a Managed Service
The SES dilemma
AWS SES is incredibly cost-effective at $0.10 per 1,000 emails. For a startup sending 100,000 emails per month, that's $10 — hard to beat on price alone. But SES is not an email API — it's email infrastructure. You get raw sending capability and nothing else. No dashboard for monitoring deliverability. No webhook system for tracking delivery events. No domain management UI. No content scoring. No send time optimization. You're responsible for building bounce handling, complaint processing, suppression lists, retry logic, and monitoring from scratch. The total cost of ownership for SES includes significant engineering time that most teams underestimate.
What you build yourself with SES
Using SES directly means you need to build: bounce and complaint handling (subscribe to SNS topics, process notifications, maintain suppression lists), delivery tracking (parse SES events, store delivery status, build reporting), domain management (manually configure SPF, DKIM, and DMARC in Route 53 or your DNS provider), retry logic (handle throttling, transient failures, and region failover), monitoring and alerting (track delivery rates, bounce rates, complaint rates, and alert on anomalies), and a developer-friendly API layer on top of the raw SES SDK. Most teams estimate this takes 2-4 weeks of engineering time to build properly, plus ongoing maintenance.
What a managed email API provides
Managed email APIs like AISend handle all of the above out of the box. You get a clean REST API, automatic bounce and complaint handling, webhook delivery events, a dashboard with analytics, domain management with one-click DNS verification, and AI-powered deliverability optimization. AISend actually uses SES as one of its backend providers — so you get SES's infrastructure reliability plus a developer experience layer and AI routing on top. The engineering time you save by not building email infrastructure is worth far more than the price difference between raw SES and a managed API.
When raw SES makes sense
Raw SES is the right choice in specific scenarios: you're sending millions of emails per month and the cost difference is material, you have a dedicated email engineering team to build and maintain the infrastructure, you need fine-grained control over every aspect of the sending pipeline, or you're already deep in the AWS ecosystem with existing SES infrastructure. For most startups and growth-stage companies, the engineering cost of maintaining SES infrastructure outweighs the price savings. Your engineers should be building product features, not email delivery pipelines.
The hybrid approach: AISend as your SES layer
AISend gives you the best of both worlds. It uses SES as a backend provider, so you benefit from SES's infrastructure, pricing, and deliverability — but you also get Postmark and SMTP as additional providers, with AI selecting the best one for each email. You don't need to manage SES directly: AISend handles configuration events, suppression lists, and monitoring. And you get features SES doesn't offer: AI content scoring, send time optimization, and multi-provider failover. Think of AISend as the developer experience layer that SES is missing. Start with AISend's free tier to test the integration, then scale up knowing that SES reliability backs your email delivery.
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