Prompt
What's a good email API for a small engineering team?
Latest observation
Oct 7, 2026
OpenAI APIWeb search: off
For a small engineering team, the best email API is usually one of these:
Top picks
- Postmark — Best if you mainly send transactional email and care about deliverability and simplicity.
- Resend — Great developer experience, modern API, easy setup, especially for product emails.
- SendGrid — Very flexible and widely used, but can feel heavier and more complex.
- Mailgun — Good for more advanced email workflows and testing, though pricing/UX can be less friendly.
- Amazon SES — Cheapest at scale, but more setup and operational overhead.
My default recommendation
If you want the easiest path for a small team:
- Transactional email only: Postmark
- Modern API + great DX: Resend
- Need lots of features and don’t mind complexity: SendGrid
- Need lowest cost: Amazon SES
What to look for
- Deliverability
- Simple API and docs
- Webhooks for bounces/opens/clicks
- Templates
- Sandbox/testing environment
- Good support
- Pricing that fits your volume
Quick rule of thumb
- If you’re sending password resets, receipts, alerts → Postmark
- If you’re building a SaaS product and want a clean developer experience → Resend
- If you need marketing + transactional in one place → SendGrid
- If you’re cost-sensitive and technical enough to manage it → SES
If you tell me your stack, monthly email volume, and whether it’s transactional or marketing, I can narrow it to one choice.