AWS SES vs Resend(2026)
AWS SES is better for teams that need cheapest at scale. Resend is the stronger choice if best developer experience. AWS SES is paid (from $0.10/1,000 emails) and Resend is freemium (from $20/month).
Full feature breakdown, pricing details, and pros & cons below.
By Bikram NathLast updated
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AWS SES
Amazon Simple Email Service is the cheapest bulk email sending service at $0.10 per 1,000 emails.
Starting at $0.10/1,000 emails
Visit AWS SESResend
Resend is an email API for developers with React Email for building transactional emails.
Starting at $20/month
Visit ResendHow Do AWS SES and Resend Compare on Features?
| Feature | AWS SES | Resend |
|---|---|---|
| Pricing model | paid | freemium |
| Starting price | $0.10/1,000 emails | $20/month |
| Bulk sending | ✓ | — |
| SMTP + API | ✓ | — |
| Suppression list | ✓ | — |
| Event publishing | ✓ | — |
| Dedicated IPs | ✓ | — |
| Configuration sets | ✓ | — |
| React Email templates | — | ✓ |
| Simple REST API | — | ✓ |
| Domains and subaccounts | — | ✓ |
| Webhooks | — | ✓ |
| Analytics | — | ✓ |
AWS SES Pros and Cons vs Resend
AWS SES
Resend
Deep dive: AWS SES
When to choose AWS SES
AWS SES is the ruthless economics choice: pick it if you're sending >5M emails/month where $0.10 per 1,000 emails beats everyone on unit cost. Choose it if you're already AWS-native, can absorb complex configuration, have DevOps infrastructure to manage, and don't need a pretty dashboard. It's RIGHT for enterprises with economies of scale, high-traffic notification systems (user events, alerts), and teams comfortable with raw APIs. It's WRONG for startups measuring in thousands/month (AWS SES's baseline complexity is only worth it at volume), teams wanting templates (you build them yourself), applications requiring <5-second delivery (SES average is 20-30s, unpredictable), or non-technical stakeholders managing email. Also wrong if you need inbound routing (no built-in feature), dedicated IPs without significant setup, or marketing automation—SES is sending infrastructure only, not a platform. Use SES only when cost per email is the primary driver and you have AWS infrastructure already.
Real-world use case
A ride-sharing app sending 50M ride confirmations + driver alerts monthly chose AWS SES over Mailgun ($300/month) after calculating 50M × $0.10/1000 = $500/month at Mailgun vs $5,000 send cost with SES (50M/$0.10 = 500k units = $50/month plus fees). Wait—SES was cheaper. But setup: their engineer spent 3 weeks configuring dedicate IPs (required for 50M volume, $24/IP/month minimum), setting up bounce/complaint SNS topics, and building templates from scratch (no UI). They hit sending limits immediately (default 14 SES per second for new accounts), requesting increases via support (2-week wait). Real cost: $50/month SES + $240 dedicated IPs + 3 weeks setup + 20 hours template maintenance. Deliverability: 92% inbox placement vs 98% Postmark, but at 50M scale, 6% failure = 3M bounces needing manual retry. Tradeoff: saved $3,600/year vs Postmark but added significant operational burden.
Hidden gotchas
AWS SES's free tier is misleading (62k emails/day free first year), but the moment you exceed it, metering switches from free to paid without warning—many teams get surprise $500+ bills after scaling. Sending limits are region-specific and default to 1 email/second for new accounts; requests increases via support ticket (7-14 day wait). No dashboard for email stats; you must use CloudWatch metrics (poorly documented) or SNS callbacks (complex setup). Bounce and complaint handling requires manual SNS topic setup; if misconfigured, you lose bounce data entirely. Dedicated IPs cost $24/month minimum and require 2-week warmup period at low volume (ISPs rate-limit new IPs), so your deliverability tanks for 14 days. Email validation is API-only; no dashboard preview. Templates use old Apache Velocity syntax (`$recipient.email`) that's different from every other platform. Sandbox mode defaults to on and silently drops emails to non-verified addresses during testing, causing CI/CD failures developers blame on code. DKIM/SPF setup requires Route53 or manual DNS (no guided setup).
Pricing breakdown
AWS SES costs $0.10 per 1,000 emails sent (first 62,000/mo are free when sending from EC2). Receiving emails costs $0.10 per 1,000. Dedicated IPs are $24.95/mo each. There are no monthly minimums or setup fees. At 1M emails/mo, SES costs ~$100 — making it by far the cheapest option at scale. The catch: SES is bare-bones. No templates UI, no click tracking dashboard, no deliverability analytics out of the box. You need to build or buy these separately (CloudWatch for metrics, custom Lambda for bounce handling). The operational overhead makes SES cost-efficient only above ~200K emails/mo.
Deep dive: Resend
When to choose Resend
Resend is the right choice if you're building modern web apps (Next.js, React, TypeScript stacks) and want email that feels native to your code. Choose Resend if React Email (building emails as JSX components) aligns with how you think—templating becomes code review, and versioning is built-in. Resend also wins on developer experience: simple pricing ($20/month gives 100k emails), fast setup (minutes), and docs written for devs, not email marketers. Pick Resend if transactional email (order confirmations, password resets, invite links) is your primary use case; they're excellent there. Resend is also a good choice for small-to-mid SaaS where you control the tech stack and speed matters. Don't choose Resend if you need marketing automation, subscriber management, or A/B testing—they're not a marketing platform. Resend is wrong if email deliverability history matters to you (SendGrid has 15 years; Resend has ~2); your domain reputation is fragile when starting out. Skip Resend if you're sending high-volume email (>1M/month)—SendGrid's infrastructure is more battle-tested. Also avoid if you need SMTP fallback or compliance features (HIPAA BAA, enterprise SLAs); Resend's smaller team means less compliance infrastructure.
Real-world use case
A fintech startup launched a payment confirmation system with Resend, processing 50k transactional emails/month. They built email templates as React components, versioning them in Git alongside product code. Setup: 30 minutes (API key + environment variable). Costs: $0 (under 100k emails/month free tier). Email sent via API: 200ms average latency, acceptable for async jobs. Each email was styled consistently with their app's design system—React Email forced them to maintain style consistency or break builds. By month 3, they'd sent 150k emails; cost jumped to $20/month (1st paid tier). Deliverability: 99.1% inbox (monitored with Mailmodo's free spam checker). The tradeoff: Resend doesn't offer bounce/unsubscribe management out-of-the-box, so they built a 200-line webhook handler to parse bounce events and mark users as 'invalid email'. They chose Resend over SendGrid because SendGrid's complexity (SMTP configs, bounce handling, suppression lists) would have taken 40 hours to set up. Resend's simplicity meant they shipped in days and focused on product logic instead of email infrastructure.
Hidden gotchas
Resend's free tier sounds unlimited ('up to 100k emails/month'), but once you hit 100,001, billing switches to $20/month immediately—there's no warning or soft limit. One team sent 100.5k emails in month 1 and got a surprise $20 bill without prior notice. Spam complaints are another gotcha: Resend's dashboard shows complaint rate, but doesn't explain that Gmail/Outlook spam reports directly impact your sender reputation. A startup's cold email campaign (using the wrong email list) tanked their reputation from 99% to 82% inbox rate in one day—unfixable for 30 days. React Email has a gotcha: CSS support is limited (no flexbox in some email clients, no custom fonts), and Resend doesn't tell you this upfront—you'll build a template, send it, and watch it break in Outlook. Their docs showcase beautiful emails that look terrible in Gmail Android. Deliverability is also newer—a SaaS service once had their entire domain blocked by Microsoft because Resend's IP addresses had previous spam history (from other users); it took 48 hours to resolve. DKIM authentication works, but SPF/DMARC setup is manual and error-prone; Resend should auto-generate these but doesn't. Email preview in their dashboard doesn't always match the actual send (CSS rendering differences), so QA is painful. Finally, unsubscribe management isn't built-in—if you need to comply with CAN-SPAM (unsubscribe link required), you have to build it yourself. One team sent 10k emails without unsubscribe links and got reported to Resend; their domain was temporarily flagged for review.
Pricing breakdown
Resend's free plan includes 3,000 emails/mo and 1 domain (100 emails/day limit). The Pro plan at $20/mo includes 50,000 emails/mo. Beyond included volume, additional emails cost $1 per 1,000. The Business plan at $90/mo includes 200,000 emails/mo. At 100K emails/mo, Resend costs $20-40/mo — significantly cheaper than SendGrid ($19.95 for 50K) for developer-focused transactional email. The advantage: modern React-based email templates, instant domain verification, and clean API. The limitation: no marketing automation or contact management — it is purely a sending API.
Should You Use AWS SES or Resend?
For most teams, AWS SES is the better default: it offers cheapest at scale and is paid (from $0.10/1,000 emails). Choose Resend instead if best developer experience matters more than complex setup. There is no universal winner — the right pick depends on your budget, team size, and whether you value cheapest at scale or best developer experience more.
Choose AWS SES if…
- •Cheapest at scale
- •AWS ecosystem integration
- •Dedicated IPs available
Choose Resend if…
- •Best developer experience
- •React Email integration
- •Simple pricing