← All decisions
Transactional email
I need to send transactional email (password resets, receipts, notifications) from my app. Which service should I use? Give your ranked top 3.
Top pick by run
| Model | Jul 3, 2026 |
|---|---|
| Claude Fable 5 | |
| Claude Opus 4.8 | |
| Claude Sonnet 4.6 | |
| Claude Haiku 4.5 | |
| GPT-5.5 |
Each column is one run. Click a pick to see that model's full ranking and reasoning. Green marks a change from the previous run.
Claude Fable 5
Jul 3, 2026- 1ResendModern developer-first API with excellent SDKs and React Email templates, making transactional sends like password resets fast to implement with a generous free tier.
- 2Amazon SESBy far the cheapest at scale ($0.10 per 1,000 emails) with strong deliverability, ideal if you're comfortable with a bit more setup for high-volume receipts and notifications.
- 3PostmarkRenowned for best-in-class transactional deliverability and speed, with message streams that keep password resets and receipts separate from any bulk traffic.