Amazon SES vs Mailgun
Raw infrastructure versus a developer-leaning managed sender.
What matters for growth and lifecycle teams
Growth work lives or dies on targeting and measurement. What matters is whether behavioral triggers can be built without engineering time, whether the event stream supports attribution past the open, and whether deliverability holds when broadcast volume shares a reputation with product email.
| Priority | Amazon SES | Mailgun |
|---|---|---|
| Scheduling | No | Yes |
| Event stream | Yes | Yes |
| Deliverability | Inherits AWS IP reputation. Generally good once warmed and configured, but the sender does the warming and complaint handling. | Generally good, with deliverability monitoring tools available on higher tiers. Inbound routes and suppressions are battle-tested. |
| Operating since | 2011 | 2010 |
| Suppressions API | Yes | Yes |
| Best published rate per 1,000 | $0.10 | $0.70 |
| Multi-tenant | No | Yes |
| Free tier | Up to $200 in AWS Free Tier credits for new accounts | 100/day permanent free plan |
| Starts at | $0.10 per 1,000 emails | $15/mo for 10,000 emails (Basic) |
For lifecycle and activation work running behavior-triggered journeys, broadcasts, and winback campaigns measured on revenue, Mailgun takes scheduling, operating track record, and multi-tenant support, while Amazon SES takes best published rate per 1,000. On free tier, Amazon SES offers Up to $200 in AWS Free Tier credits for new accounts against 100/day permanent free plan from Mailgun. That ordering reflects this audience. Weigh the same table differently and the answer changes.
Side by side
| Feature | Amazon SES | Mailgun |
|---|---|---|
| Deliverability | Inherits AWS IP reputation. Generally good once warmed and configured, but the sender does the warming and complaint handling. | Generally good, with deliverability monitoring tools available on higher tiers. Inbound routes and suppressions are battle-tested. |
| Multi-tenant | No | Yes |
| Free tier | Up to $200 in AWS Free Tier credits for new accounts | 100/day permanent free plan |
| Starts at | $0.10 per 1,000 emails | $15/mo for 10,000 emails (Basic) |
| Tagline | Cheapest at scale, most setup work. | Developer-leaning email infra, owned by Sinch. |
| Pricing model | pay-as-you-go | tiered |
| API | Yes | Yes |
| SMTP | Yes | Yes |
| SDKs | node, python, go, ruby, php, java, rust, dotnet | node, python, go, ruby, php, java |
| Templates | basic | rich |
| React Email | No | No |
| Webhooks | No | Yes |
| Inbound | Yes | Yes |
| Idempotency | No | No |
| Dedicated IP | Yes | Yes |
| DX score | 4/10 | 7/10 |
| Best for | High-volume senders with AWS infrastructure, cost-optimized workloads, and teams comfortable wiring SNS/Lambda/EventBridge for events. | Technical teams that want SMTP relay plus advanced routing. |
Amazon SES
- ›Cheapest cost per email, by a large margin at scale
- ›Built for billions: handles the largest sender workloads in the world
- ›Multi-region (us-east-1, us-west-2, eu-west-1, ap-south-1, and more) with regional reputation pools
- ›Native integration with Lambda, SNS, SQS, EventBridge, and CloudWatch
- ›Dedicated IPs and managed dedicated IP pools
- ›VPC endpoints for sending from private networks
- ›Inbound receiving with S3 and Lambda for fully serverless email pipelines
- ›SDKs in every language AWS supports, from Rust to .NET
- ›IAM-based authentication; no separate API keys to manage
- ›Sandbox mode requires manual approval before sending to non-verified recipients
- ›No native webhooks; events route through SNS and you write your own glue
- ›No dashboard for message-level debugging
- ›Bounce and complaint handling is the sender's responsibility
- ›Templates are minimal
- ›Operational overhead is real if you are not already on AWS
Mailgun
- ›Strong SMTP relay support, useful when migrating off self-hosted Postfix
- ›Inbound routes with regex matching
- ›Validation and parsing tools available
- ›Sub-accounts for agency use cases
- ›Overage pricing and plan differences need close review at scale
- ›Documentation is comprehensive but occasionally out of date
- ›No idempotency keys
- ›Sinch ownership has moved focus toward enterprise