Warming up
Every account now comes with a free mailbox — warmed automatically, no domain to buy. See how it works
Transactional email API
Every account now comes with a free mailbox — warmed automatically, no domain to buy. See how it works
Choose Amazon SES if you send a lot, have engineers, and want the lowest per-email price; choose SendGrid if you want the dashboard, templates, suppression lists and webhooks already built. On list prices as of September 2026: at 10,000 Amazon SES lists lower ($1 against $19.95); at 50,000 Amazon SES lists lower ($5 against $19.95); at 100,000 Amazon SES lists lower ($10 against $34.95); at 500,000 Amazon SES lists lower ($50 against $499). Prices are the cheapest published monthly plan that covers each volume, with overage left out.
What each one lists for the same monthly volume, from their own pricing pages.
| Emails a month | Amazon SES | SendGrid | Warmerly |
|---|---|---|---|
| 10,000 | $1$0.10 per 1,000 | $19.95Essentials 50k | $15Starter |
| 50,000 | $5$0.10 per 1,000 | $19.95Essentials 50k | $15Starter |
| 100,000 | $10$0.10 per 1,000 | $34.95Essentials 100k | $29Growth |
| 500,000 | $50$0.10 per 1,000 | $499Pro 700k | $279Scale 500k |
List prices, monthly billing, USD: the cheapest published plan that includes that many emails, overage left out. Prices from aws.amazon.com/ses and sendgrid.com as of September 2026; check their sites for current rates. Shaded cells are the cheaper of the two; Warmerly is shown for reference.
What each one does today. Warmerly is a third option for API-only app email; where it says "not yet", it means it.
| Feature | Amazon SES | SendGrid | Warmerly |
|---|---|---|---|
| API shape | AWS SDK or signed HTTPS API (SendEmail v2); AWS credentials | REST v3 /mail/send with a personalizations array; bearer key | REST, JSON over HTTPS, bearer key, Idempotency-Key header |
| SMTP relay | Yes | Yes | Not yet (on the roadmap) |
| Delivery webhooks | Events go to SNS, EventBridge or Firehose; you build the consumer | Event Webhook: 2 on Essentials, 5 on Pro | Not yet. Read each email's delivery timeline from GET /emails/{id} |
| Templates | Yes (SES templates) | Yes (dynamic templates) | Not yet. You send your own HTML and text |
| Dedicated IP | $24.95/mo per IP; managed IPs $15/mo plus a per-email fee | 1 included on Pro and Premier | $29/mo on Scale plans |
| Suppression list | Account-level suppression list; anything per app is yours to build | Yes: bounce, spam report and unsubscribe lists | Automatic on hard bounce and spam complaint, shared with Warmerly outreach |
| Free tier | Up to $200 in AWS Free Tier credits for new AWS customers, for 6 months | 100 a day for 60 days (a trial) | 5,000 a month (200 a day), no time limit, no card |
| Log retention | No message log to browse by default; you store the events you want | Email activity: 3 days on Essentials, 7 on Pro | Content 30 days; the email record and its delivery events are kept |
| SDKs | Every AWS SDK | Official libraries for C#, Go, Java, Node.js, PHP, Python and Ruby | None. One HTTP request from any language |
| Support | AWS Support plans (technical support needs a paid plan) | See sendgrid.com | Email (support@warmerly.com), plus a 99.9% monthly uptime commitment with service credits |
Neither is right for everyone. These are the cases that decide it.
Warmerly sends through Amazon SES and keeps transactional mail apart from cold outreach. It has a free plan of 5,000 emails a month, but it is REST only today: no SMTP relay, delivery webhooks or templates yet. If an API is all you need, see how it compares on the Amazon SES alternative and SendGrid alternative pages.
On list prices as of September 2026: at 10,000 Amazon SES lists lower ($1 against $19.95); at 50,000 Amazon SES lists lower ($5 against $19.95); at 100,000 Amazon SES lists lower ($10 against $34.95); at 500,000 Amazon SES lists lower ($50 against $499). Overage rates and plans larger than those compared are not included, so check each vendor's pricing page for your exact volume.
Amazon SES: Up to $200 in AWS Free Tier credits for new AWS customers, for 6 months. SendGrid: 100 a day for 60 days (a trial).
Amazon SES: Yes. SendGrid: Yes.
Amazon SES: No message log to browse by default; you store the events you want. SendGrid: Email activity: 3 days on Essentials, 7 on Pro.
Warmerly is a transactional email API that sends through Amazon SES. It lists $15 a month for 50,000 emails and a free plan of 5,000 emails a month, but it is REST only and has no SMTP relay, webhooks or templates yet. Compare it on the Amazon SES alternative and SendGrid alternative pages.
Create a free account, verify a sending domain and send a test from the dashboard. 5,000 emails a month free, no card.
