Unitpost vs Amazon SES

Amazon SES is AWS's email sending and receiving service, used through the SES API, SMTP or an AWS SDK, with events published to other AWS services. Unitpost covers transactional and marketing email in one product with unlimited contacts on paid plans and a free tier of 5,000 emails a month. Across 8 compared capabilities, Unitpost leads on 6 and Amazon SES leads on 2.

Comparing more than two? Best Amazon SES alternatives in 2026, ranked with published weights.

Which should you choose?

Choose Amazon SES if

You already run on AWS, with IAM and its event services
You send very high volume and the price per email matters most
You need multi-region sending or compliance archiving

Choose Unitpost if

You want a free plan and a signup that doesn't start in a sandbox
You want webhooks to your URL, not events through SNS or EventBridge
You want idempotency keys, campaigns, templates and a dashboard out of the box
You want a hosted MCP server for agents, with OAuth

What Amazon SES does well

Stated plainly, because a comparison that pretends otherwise is not worth reading.

The lowest unit price at high volume
Proven at very large scale since 2011
Managed and standard dedicated IPs, and reputation isolation by tenant
Receipt rules to S3, Lambda or SNS, and Mail Manager with archiving

Pricing and free tier

Unitpost: 5,000 emails/month, 200/day, no credit card; On paid plans your monthly price is a sending allowance you spend at your tier's rate, and it refreshes every month. Marketing and unlimited contacts are included rather than billed as add-ons.
Amazon SES: No SES free tier; new AWS accounts get up to $200 in Free Tier credits; Per 1,000 emails: à la carte from $0.10, or a plan with a monthly fee per account and region (new accounts start on Essentials at $0.16 per 1,000).

Amazon SES pricing and free-tier details last verified 2026-11. Providers change these often — check their pricing page before making a decision.

Feature comparison

Feature and pricing comparison between Unitpost and Amazon SES
Capability	Unitpost	Amazon SES
Free plan	5,000 emails/month, 200/day, no credit card	No SES free tier; up to $200 in AWS credits for new accounts
Getting started	Send after verifying your domain	Each region starts in a sandbox: verified recipients only, 200 messages a day, until production access is granted
Price at high volume	Falls with volume, to $0.25 per 1,000 at our top plan	From $0.10 per 1,000 à la carte
Delivery events	Signed webhooks to your URL (svix-compatible HMAC-SHA256 with a 24-hour dual-signing rotation grace)	Configuration sets publish to SNS, EventBridge, Firehose or CloudWatch; no direct HTTP webhook
Idempotency keys on send	Idempotency-Key on sends, 24-hour dedupe window	No idempotency parameter on SendEmail
Marketing email	Campaigns, segments and topics	Contact lists and topics for subscriptions; no campaign builder
Dedicated IPs	Not launched yet	Standard at $24.95 a month per IP, or managed IPs
MCP server for agents	Hosted, OAuth, every send through the sending gate	No official SES server; a local sample and the general AWS MCP server with IAM credentials

How do I switch from Amazon SES?

There is no one-key importer for Amazon SES: export your contacts and suppressions, import them, verify your sending domain, and move one kind of mail at a time.

Replace the SES event destinations with webhook subscriptions, and copy your account-level suppression list across before the first send.

Read the docs

Frequently asked questions

Is Unitpost an Amazon SES alternative?

Yes, for teams that want sending without building the rest: a free plan, webhooks to your URL, idempotency keys, campaigns and a dashboard. At very high volume SES costs less per email, and it fits teams already deep in AWS.

Why is SES cheaper per email?

SES sells sending and leaves the rest to you: event routing, suppression handling, templates and the dashboard are AWS services you assemble. The price per email is lower; the work around it is yours.

Switching from Amazon SES?

Try it on the free tier first

5,000 emails a month free. Verify a domain, send a test, preview the migration.

Start for free Explore the docs