Prompt
Which transactional email provider is cheapest at low volume?
Latest observation
Sep 23, 2026
OpenAI APIWeb search: off
At low volume, the cheapest transactional email provider is usually the one with the most generous free tier, then the lowest pay-as-you-go rate once you exceed it.
Common low-volume cheapest options
- Resend — often one of the cheapest/easiest for small apps; generous free tier, then low per-email pricing.
- Amazon SES — usually the lowest raw cost per email if you’re okay with a more technical setup; extremely cheap at scale, but not always the easiest for low-volume beginners.
- Brevo (Sendinblue) — good free tier and simple interface; can be very cost-effective at low volume.
- Mailgun — solid, but often not the cheapest for very low usage compared with the above.
- Postmark — excellent deliverability and simplicity, but generally not the cheapest for low volume.
Rule of thumb
- If you want absolute lowest cost: Amazon SES
- If you want low cost + easy developer experience: Resend or Brevo
- If you want best transactional reliability/support and cost is secondary: Postmark
If you want, I can give you a current price comparison table for a specific volume, like 1,000 / 10,000 / 50,000 emails per month.