Transactional Email API
Best Amazon SES Alternatives & Open-Source Competitors in 1970
Amazon SES is priced as pay-as-you-go per 1,000 emails, starting at $0.10 per 1,000 emails. Here are 3 alternatives, with their pricing, self-hosting effort and trade-offs.
Why teams move away from Amazon SES
- Onboarding is console-and-DNS first: leaving the sandbox takes setup and a support request
- Deliverability tooling is basic compared with SendGrid or Postmark
- Billing arrives as one line in a larger AWS invoice, which is easy to lose track of
Amazon SES alternatives at a glance
| Tool | Licence | Starting price | Self-hosting | Stars |
|---|---|---|---|---|
| Amazon SES | Proprietary | $0.10 per 1,000 emails | Not available | N/A |
| Resend | Proprietary | $20/mo (Pro, 50,000 emails) | Not available | N/A |
| Twilio SendGrid | Proprietary | $19.95/mo (Essentials, 50,000 emails) | Not available | N/A |
| Postmark | Proprietary | $15/mo (10,000 emails) | Not available | N/A |
The alternatives in detail
Resend
Per-email volume, flat monthly plans
Proprietary
- Starting price
- $20/mo (Pro, 50,000 emails)
- Free tier
- Free 3,000 emails/mo (100/day), 1 domain
- Self-hosting
- Not available
Pros
- Clean REST API with React Email templates and SDKs for every major language
- Deliverability dashboard with bounces, complaints and suppression lists in one view
- Flat plans that do not charge per seat or per teammate
Cons
- No self-hosting, so sending depends on a third party
- Much less marketing automation than SendGrid or Mailchimp
- Per-email cost at high volume is several times Amazon SES
Twilio SendGrid
Per-email plan, marketing features as add-ons
Proprietary
- Starting price
- $19.95/mo (Essentials, 50,000 emails)
- Free tier
- Free 100 emails/day forever
- Self-hosting
- Not available
Pros
- Delivery infrastructure and IP reputation built over more than a decade of volume
- Marketing campaigns, templates and transactional mail under one account
- Extensive documentation, webhooks and legacy SMTP support
Cons
- Feature tiers and email volumes are mixed together, which makes upgrading confusing
- Account reviews can restrict sending at short notice
- Priority deliverability support only comes with the expensive plans
Postmark
Per-email volume, no overage surprises
Proprietary
- Starting price
- $15/mo (10,000 emails)
- Free tier
- Free trial: 100 test emails/mo
- Self-hosting
- Not available
Pros
- Best-in-class transactional deliverability with separate message streams
- Simple per-email pricing with no feature gating on the API
- Detailed activity log for every message, which makes debugging delivery fast
Cons
- No production free tier at all
- Almost no marketing campaign tooling
- Per-email cost is high next to Amazon SES or Resend at volume
Amazon SES alternatives: FAQ
Why do teams look for Amazon SES alternatives?
The most common reasons are: onboarding is console-and-DNS first: leaving the sandbox takes setup and a support request; deliverability tooling is basic compared with SendGrid or Postmark; billing arrives as one line in a larger AWS invoice, which is easy to lose track of.
Is there a free alternative to Amazon SES?
Resend: Free 3,000 emails/mo (100/day), 1 domain. Twilio SendGrid: Free 100 emails/day forever. Postmark: Free trial: 100 test emails/mo.