Amazon SES VS Postmark
AWS · Postmark · Email APIs · Updated Oct 25, 2026
Side-by-Side Breakdown
| Feature | Amazon SES | Postmark | Winner |
|---|---|---|---|
| Per 1k Emails | $0.10/1k emails | $1.50/1k emails | ✓ Amazon SES |
| Monthly Base | Included | Included | — |
| Provider | AWS | Postmark | — |
| Category | email-api | email-api | — |
| free tier | 62k/mo (EC2) | 100/mo | |
| deliverability | Medium | Highest | |
| dkim | Yes | Yes | |
| analytics | CloudWatch | Yes | |
| webhooks | SNS | Yes | |
| Overall Winner | 🏆 | Amazon SES |
Amazon SES vs Postmark: Quick Summary
Amazon SES is the more affordable choice. Amazon SES costs $0.10/1k emails vs Postmark at $1.50/1k emails (Per 1k Emails). Amazon SES is 93.3% cheaper. Pricing verified as of Oct 25, 2026 — always confirm on the provider's official pricing page before committing.
Amazon SES vs Postmark: Full Pricing Analysis
On headline price, Amazon SES is the cheaper option: $0.10/1k emails versus $1.50/1k emails for Postmark (Per 1k Emails) — about 93% less. At a scale of one million per 1k emails, that difference works out to roughly $100,000.00 with Amazon SES against $1,500,000.00 with Postmark. For high-volume workloads that gap compounds quickly, so if your usage is predictable and large, Amazon SES is the more economical default.
Price isn’t the whole story, though. Postmark (Postmark) sits at the higher price point, which is often justified by broader features, stronger delivery/SLA guarantees, or a more mature developer experience. If you need those capabilities, the premium can pay for itself. Choose Amazon SES when cost-per-unit is the priority and your requirements are straightforward; choose Postmark when reliability, tooling, or ecosystem fit matter more than shaving the per-unit rate.
Beyond price, the two differ on free tier (62k/mo (EC2) vs 100/mo), deliverability (Medium vs Highest), dkim (Yes vs Yes) and analytics (CloudWatch vs Yes). Check those specs against your actual requirements before committing — the cheaper option is only the better deal if it also meets your technical needs.
Pricing shown is Per 1k Emails as published by each provider and verified Oct 25, 2026. Providers change prices and introduce free tiers and volume discounts frequently — always confirm the current rate on AWS’s and Postmark’s official pricing pages before you commit.